ARE THERE TRACES OF GLACIAL MAN IN THE TRENTON GRAVELS?

In a paper published in _Science_, Nov. 25. 1892, I undertook to study

the evidence relating to paleolithic man in the eastern United States

from a new point of view,--that furnished by certain recently acquired

knowledge of the contents of quarries and shops where modern aboriginal

flaked implements were made. It was shown that all rudely flaked forms

could be sufficiently accounted for without the necessity of assuming

a very rude state of culture, and that any people, paleolithic or

neolithic, would in roughing out blades--the principal product of the

flaking process--produce precisely these forms and in great numbers

as refuse. It further appeared that the finding of these objects in

sporadic cases in glacial gravels or in any formation whatsoever, could

not be considered as proving or tending to establish the existence of

a particular grade of stone-age culture for the region in which the

formation occurs, since they may as readily pertain to a neolithic

as to a paleolithic status. It was conclusively shown that no worked

stone that can with reasonable safety be called an implement has been

reported from the gravels, and that it is therefore clearly useless,

not to say unscientific, to go on enlarging upon the evidence of an

American paleolithic period and multiplying theoretic details of its

culture.

I now propose to review briefly the question of the age of our

so-called paleolithic implements, the questions of the _grade_ of

a given feature of culture and of the _age_ or chronologic place

of that culture being very properly treated separately, as they

depend for their support upon distinct classes of evidence. During

the past summer, 1892, certain important items of new evidence have

been discovered bearing upon the question of the occurrence or

non-occurrence of rudely flaked stones or of any artificial objects

whatsoever in the normal gravels of the Delaware Valley, and it

therefore becomes necessary to examine somewhat critically such of the

published evidence as seems to be seriously affected by these recent

observations.

It may be stated in beginning that no one disputes the glacial age of

the Trenton gravels. The question to be discussed is simply this,--is

the evidence satisfactory that works of art have been found in these

gravels? Nothing else need be asked or answered. I do not take up

this subject because I love controversy; disputation is really most

distasteful to me. It happens that under the Bureau of Ethnology of the

Smithsonian Institution I have been assigned to the work of making a

survey of the archeology of the Atlantic coast region in which large

areas, especially in states south of Mason and Dixon's line, remained

almost untouched by investigators, and two years have been consumed

mainly in these southern areas. But there are questions that refuse

to be confined to definite geographic limits, and evidence secured in

one section is sometimes found to bear so directly and forcibly upon

problems pertaining primarily to other sections that the student of

these problems must perforce become a free lance, and unhesitatingly

enter any province promising results of value, howsoever fully occupied

it may be by other investigators. One of the most interesting and

important questions growing out of the study of American archeology

has, as we have seen, arisen in the Delaware Valley, and the turn taken

by some of my work in the south and west is such that I cannot pass

this question by without consideration. The necessity of taking up

the subject of glacial man became more and more apparent as the years

passed on, and people continued to say to me, "You must go to Trenton;

we are not satisfied with the present status of the question there; the

evidence arrayed in favor of the theory of a paleolithic gravel man

needs critical examination."

The difficulty of taking up and re-examining evidence, of which the

record only remains, is, however, very great, since in most cases

the evidence rests upon or consists of field observations, and these

cannot be recalled or repeated, and there is absolutely no means of

testing directly the value of what is recorded. One may seek either to

verify or to discredit the promulgated theories, but years of search

may fail to produce a single new item of evidence bearing decisively

upon the subject. It is possible that at one period numerous finds of

implements should be reported from certain portions of the gravels,

and that afterwards the whole remaining body of these formations

should be worked over and searched without securing a trace of art;

yet this latter evidence, being negative, need not necessarily be

considered sufficient to overturn the original positive evidence if

that happens to be of a high class. There is not the least doubt,

however, that positive evidence may be so impaired by various defects

and inconsistencies, that, unsupported by renewed and well verified

observations, it will finally yield to the negative forces; and if

the theories of a gravel man in the eastern United States, howsoever

fortified by accumulated observations, are not really properly

supported in every way, they are bound in time to fall to the ground.

All I can reasonably hope to do now is to have the evidence relating to

glacial man placed on trial, and so fully examined and cross-examined

that those who accept gravel man need not longer do so blindly without

knowing that there are two sides to the question, and those who do not

accept him may know something of the reasons for the belief that is in

them.

The evidence employed to prove the presence of a race of men in

the Delaware Valley in glacial times is confined almost wholly to

the alleged discovery of rude implements in the glacial gravels.

Practically all the evidence has been collected by Dr. C. C. Abbott,

and upon his skill as an observer, his faithfulness as a recorder,

his correctness of judgment and his integrity of character, the whole

matter stands. Many visitors, men of high repute in archeology and

geology, have visited the site, but the observations made on such

occasions appear not to have been of a nature to be of great value in

evidence, the finds being doubtful works of art or not having properly

established relationships with the gravels in place. In the discussion

of gravel man in eastern America a wide range of objects and phenomena

has been considered, but the real evidence, upon which the theory of

an ancient race and a peculiar culture must depend, is furnished by a

hundred pieces--more or less--of rudely flaked stones said to have come

from the gravels in place. And now what can be said with reference to

this series of flaked stones further than that they are reported by the

collector to have been found in the gravels at definite stated depths?

I have elsewhere shown that they are not demonstrably implements

in any case, that they are identical in every respect with the

quarry-shop rejects of the American Indian, that they do not closely

resemble any one of the well established types of European paleolithic

implements, and that they are not a sufficient index of a particular

stage of culture. I shall now present such reasons as there may be

for the belief, held by many, that they were not really found in the

undisturbed glacial gravels.

It is generally understood that the earliest reported gravel finds of

importance were made on the banks of Assanpink creek within the city

limits of Trenton, where the gravels to a thickness of twenty feet or

more were exposed in a railway cutting. Later the river bluff near the

lower end of the city, where the gravels were exposed to a depth of

from twenty-five to forty feet, yielded large numbers. These two sites,

so far as I can learn, furnished at least three-fourths of the finds in

place. Other specimens were found singly in slight natural exposures,

and in excavations for cellars, sewers, etc., at various points within

the city limits.

The river bluff was for a considerable period the favorite hunting

ground of the searchers for rudely flaked stones, and many specimens

were collected. The gravels were exposed in a steep, nearly straight

bank, several hundred yards in length, the base of which was washed by

the river. There can be no question that Dr. Abbott and others have

found shaped objects of various classes upon and in the face of this

river bluff, and the visitor to-day, although the bluff is now buried

almost completely under city refuse, will hardly fail to find some

rudely flaked form in the deeper gullies or upon the narrow river bank

or beach at the base. Dr. Abbott explicitly states[1] that he obtained

certain of these specimens from the gravel outcrops, and that they were

not in talus formations, but in undisturbed deposits. How then is it

possible to do otherwise than accept these statements as satisfactory

and final?

[1] Abbott, C. C. Primitive Industry, pp. 493-510.

[Illustration: =Fig. 1.= Sketch map of the Trenton bluff, showing the

relation of the sewer trench to the "implement" yielding slope.... a-b

section line, =Fig. 2=.]

Very recently, however, fortunate circumstances have brought the

evidence furnished by this site again within our reach, thus enabling

us to re-open the discussion under favorable conditions. What I had

for some time desired to do in this case was, what I had already done

at Piny Branch, D. C., and at Little Falls, Minn., to open a trench

into the face of the bluff, and thus secure evidence for or against

the theory of a gravel man. This measure was, however, rendered

impracticable by the occupation of the bluff margin by a city street;

but it happened last summer that the city authorities, desiring to

improve the sanitary condition of the city, decided to open a great

sewer through this very bluff to get a lower outlet to the river. A

trench twelve feet wide and some thirty feet deep, the full depth

of the exposed gravels, was carried along the bluff just inside of

its margin, opening out into the river at the point where the bluff

turns toward the north-east. It was a trenching more complete and more

satisfactory than any of which I had ever dreamed. At no point for the

entire length of the bluff did the excavation depart more than forty

feet from the line of the terrace face--from the upper margin of the

slope upon which such plentiful evidence of a supposed gravel man had

been obtained. The accompanying map and section, Figs. 1 and 2, will

indicate the location of the trench, and show the exact relations of

the natural and artificial exposures of the gravels.

[Illustration: =Fig. 2.= Sections made by the river and by the sewer,

the former yielding many "implements," the latter yielding none.]

I made several visits to the place, descended frequently into the great

cut and examined the gravels and their contents with the utmost care,

but without securing a trace of art. Recognizing the vital importance

of utilizing to the fullest extent this opportunity of testing the

art-bearing nature of the gravels at this point, I resolved to

undertake a systematic study of the subject. Summoning my assistant,

Mr. William Dinwiddie, from his field of operations in the South, I had

him spend upwards of a month at the great trench, faithfully watching

the gravels as they were exposed. Mr. Dinwiddie had worked three years

under my personal direction, and had helped open upwards of twenty

trenches through similar gravel deposits, and was therefore well

qualified for the work. Prof. W. J. McGee, Prof. R. D. Salisbury, Dr.

Stewart Culin and Dr. Abbott also visited the place one or more times

each. Relics of art were found upon the surface and in such portions of

the talus as happened to be exposed, but nothing whatever was found in

the gravels in place, and the search was closed when it became fully

apparent that the case was hopeless.

It may be claimed that the conditions under which gravels are exposed

in trenching as it progresses, are not as favorable for the collection

of enclosed relics as where exposed by natural processes of weathering.

This is true in a certain measure, as specimens may be obscured by

the damp clinging sand which forms the matrix of the gravels. This,

however, would interfere but little with the discovery of large flaked

stones, such as we were led to expect in this place, and this slight

disadvantage in detecting shaped pieces in fresh exposures is more

than over-balanced by the treachery of weathered surfaces which often

give to intrusive objects the appearance of original inclusion. The

opportunity for studying the gravels in all their phases of bedding,

composition and contents, was really excellent, and no one could watch

the constantly renewed exposures hour after hour for a month without

forming a most decided notion as to the implement bearing qualities

of the formation. Not the trace of a flaked stone, or of a flake or

artificial fragment of any kind was found, and we closed the work

with the firm conviction that the gravels exposed by this trench were

absolutely barren of art. But Dr. Abbott claims to have found numerous

implements in the bluff face a few feet away and in the same gravels.

If this is true, the conditions of glacial occupation of this site

must have been indeed remarkable. It is implied that during the whole

period occupied by the melting of the ice sheet within the drainage of

the Delaware valley the hypothetical rude race lived on a particular

line or zone afterwards exposed by the river to the depth of 30 feet,

leaving his strange "tools" there by the hundreds, while another line

or zone, not more than forty feet away at most, exposed to the same

depth by an artificial trench, was so avoided by him that it does not

furnish the least memento of his presence. One vertical slice of the

gravels twelve feet thick does not yield even a broken stone, while

another slice not probably one-half as thick, cut obliquely through

the gravels near by, has furnished subject-matter for numerous books

and substantiation for a brace of theories. That no natural line of

demarcation between the two section lines is possible, is shown by

the fact that the formations are continuous, and that the deposits

indicate a constant shifting of lines and areas of accumulation;

thus it was impossible for any race to dwell continuously upon any

spot, line or plane. This is well shown in the section, Fig. 3, which

gives the relations of the art-producing section of Dr. Abbott to the

non-art-producing section of the sewer. The gravels were laid down

entirely irrespective of subsequent cutting, natural or artificial;

yet we are expected to believe that a so-called gravel man could have

resorted for a thousand years to the space _a_, leaving his half

shaped or incipient tools at all stages of the gravel building from

base to top, failing entirely to visit a neighboring space _b_, or to

leave there a single flake to reward the most faithful search. It is

much easier to believe that one man should err than that a guileless

race should thus conspire with a heartless nature to accomplish such

extraordinary results. The easier explanation of the whole matter is

that the objects found by Dr. Abbott were not really in the gravels,

but that they are Indian shop-refuse settled into the old talus

deposits of the bluff, and that his eager eyes, blinded by a prevailing

belief in a paleolithic man for all the world alike, failed to observe

with their wonted keenness and power.

[Illustration: =Fig. 3.= _a_, Reputed "implement" producing zone of the

river front. _b_, Barren zone of sewer.]

But this case does not stand alone. The first discoveries of supposed

gravel implements are said to have been made when the Pennsylvania

Railway opened a road bed through the creek terrace on the site of the

present station. At first numerous specimens of rudely flaked stones

were reported, and the locality became widely known to archeologists,

but the implement bearing portions of the gravels--and this is a most

significant fact--were limited in extent, and the deposit was soon

completely removed, the horizontal extension containing nothing. At

present there are excellent exposures of the full thickness of the

gravels at this point, but the most diligent search is vain, the only

result of days of examination being a deep conviction that these

gravels are and always were wholly barren of art.

It thus appears that here as well as upon the river front, the works

of art were confined to local deposits, limited horizontally but not

vertically, and a strong presumption is created that the finds were

confined to redistributed gravels settled upon the terrace face in the

form of talus. Dr. Abbott states that "at that point where I gathered

the majority of specimens there is a want of stratification."[2] It

is well known that such rearranged deposits are often difficult to

distinguish from the original gravels. In trenching an implement

producing terrace at Washington--where the conditions were probably

quite similar to those at the Trenton railroad station--I passed

through eighty feet of redistributed talus gravels before encountering

the gravels in place, and so deceptively were portions of these

deposits re-set that experts in gravel phenomena were unable to decide

whether they were or were not portions of the original formation

(cretaceous). The question was finally settled by the discovery of

artificially shaped stones in and beneath the deposits.

[2] Abbott, C. C. 10th Annual Report of the Peabody Museum, p. 41.

Again, an implement bearing deposit of gravel was recently discovered

by the late Miss F. E. Babbitt at Little Falls, Minnesota, and

sufficient (a very little) digging was done to satisfy the discoverer,

and all paleolithic archeologists as well, that the objects were really

imbedded in the glacial gravels. In the summer of 1892 I visited the

place and carried a trench twenty feet horizontally into the terrace

face on the "implement bed" level before encountering the gravels in

place. The talus deposits were several feet thick, and were of such

a nature that their true character could not be determined without

careful and extensive trenching. The whole talus deposit was here

well stocked with Indian quartz quarry-shop rejects, which were as

usual of paleolithic types, and it was but natural that Miss Babbitt's

conclusions, although based as they necessarily were upon inexpert

observations, backed by such well known "types" of "implements" should

be unhesitatingly accepted by believers.

The occurrence of these telling examples of the deceptive appearance

of re-set gravels would seem to justify and emphasize the conviction

created by a critical examination of the two leading so-called

paleolithic sites at Trenton, that Dr. Abbott, notwithstanding his

asseverations to the contrary, has been deceived. Very strong support,

it seems to me, is given to this conclusion by the recently published

opinion of the late Dr. H. Carvill Lewis, a glacialist familiar

with the Trenton region, and with the work of Dr. Abbott at the

period of his paleolithic castle building. Dr. Lewis is reported to

have maintained before an open meeting of the Academy of Science in

Philadelphia "that what Dr. Abbott believed to be undisturbed layers

(of gravel) were those of an ancient talus."[3] This remark may refer

to both the main sites--the one at the railroad station and the other

at the river front--or possibly only to the former. I have also heard

it stated that that eminent scholar, Dr. Leidy, who must have had ample

opportunities of forming correct opinions upon the subject, held pretty

much the same views of Dr. Abbott's finds.

[3] Brinton, D. G., Science, Oct. 28, p. 249.

[Illustration: =Fig. 4.= A freshly formed gravel bluff.]

[Illustration: =Fig. 5.= Early stage of talus formation.]

[Illustration: =Fig. 6.= An ancient talus.]

To make the above criticism entirely clear, a few words of explanation

of talus phenomena may be added. As a river cuts its channel deeper

and deeper into deposits of gravel a section is gradually exposed, but

the gravels break down readily under atmospheric influences and the

exposed face does not retain a high angle. The upper part crumbles and

descends toward the base, there to rest against the slope or to be

carried away by the stream. A supposititious case will be convenient

for illustration. A gravel terrace twenty feet in height is encroached

upon by the river at high water and undermined, and the face breaks

down vertically, leaving an exposure as illustrated in Fig. 4. In a

very short time the upper portions become loosened and fall below,

giving a steep slope as seen in Fig. 5. The process goes on with

gradually decreasing rapidity, and if the river does not again encroach

seriously, a practically stable slope is reached, as shown in Fig.

6. Such a talus may be hundreds or even thousands of years old, but

there is rarely any means of determining its exact age. If the gravels

are homogeneous in character, the talus will simulate their normal

condition so completely that the distinction cannot be made out in

ordinary gullies or by unsystematic digging. If the gravels contain

varied strata the talus will be composite, and will be more readily

distinguished from at least portions of the material in place.

Now it is important to observe what may be the possible art contents

of such a talus as that shown in Fig. 6. It may contain all objects

of art originally included in that portion of the gravels represented

by _a_, _b_, _c_, together with all articles that happened to be upon

the surface _b_, _c_, beside such objects as may have accumulated from

dwelling or shop work upon its own surface, after the slope became

sufficiently reduced to be occupied for these purposes. A talus is

therefore liable to contain, and in the utmost confusion, relics of all

periods of occupation, supposing always that there were such periods,

from the beginning of the formation of the gravel deposits down to the

present moment. As a rule such a talus, if art-containing, will have a

large percentage of shop and quarry-shop refuse, for the reason that

the exposed gravels, and the banks and beds of rivers cutting them,

furnish, as a rule, a good deal of the raw material utilized by workers

in stone, and the shops in which the work was done are usually located

upon the slopes and outer margins of the terraces. Although there is

the possibility of very considerable age for these talus deposits,

it is unlikely that any of them date back as far as the close of the

glacial epoch or at all near it, for rivers change back and forth

constantly, undermining first one bank and then the other, so that a

very large percentage of our talus deposits have been formed well

within the historic period.

At Trenton the constantly exposed gravel banks afforded considerable

argillite in bowlders, fragments and heavy masses, as well as some

other flakable stones of inferior quality little used, and it is

inevitable that the Indian who dwelt upon the shores of the river

should have sought the workable pieces along the bluff, leaving the

refuse everywhere; and it is a necessary consequence that the terrace

margin, the bluff face, and the talus deposits, places little fitted

for habitation, should for long distances contain no trace of any

art shapes save such as pertain to manufacture. Thus are fully and

satisfactorily accounted for all the turtle backs and other rude

forms that our paleolith hunters have been so assiduously gathering.

Nothing can be more fully apparent than that no other race than the

Indian in his historic character and condition need be conjured up to

reasonably account for every phase and every article of the recovered

art. Mistaken interpretations of the nature of shop rejects, and the

common association of these objects with redistributed gravels, are

probably accountable for the many misconceptions that have arisen.

Talus deposits form exceedingly treacherous records for the would-be

chronologist. They are the reef upon which more than one paleolithic

adventurer has been wrecked.

Relics of art attributed to gravel man have been collected, so far

as I can gather from museum labels and from incidental references in

various publications, from a number of sites aside from the two already

referred to. These are scattered over the city, and the finds were made

mostly in exposures of the gravels that remained visible for a short

time only, as in street and cellar excavations and well pits. These

reported finds can never be brought within the range of re-examination,

and the searcher after unimpeachable testimony must content himself

with placing them in the doubtful column on general principles.

Urban districts are so subject to disturbance through cutting down

of hills, filling in of depressions, grading of streets, digging of

foundations, cellars, sewers, wells and graves that no man can, from a

limited exposure such as those producing the reported tools necessarily

were, speak with certainty of the undisturbed nature of the deposits

penetrated. It is doubtful if any one is justified in publishing such

observations at all without serious query. Such testimony is liable

to fall of its own inherent weakness, being absolutely valueless if

unsupported by collateral evidence of real weight. It can only be made

permanently available to science by the discovery of something unusual

or unique with which to couple it, something decidedly un-Indian in

character or type, as for example the two skulls now in the Peabody

Museum. These objects and the antler knife-handle exhibited with them

may be alluded to as the only finds so far made at Trenton, having

of themselves the least potentiality as proof and these skulls and

this knife-handle must yet be subjected to the rigid examination made

necessary by the importance of the conclusions to be based upon them.

Something may now be said concerning the art remains upon which

this discussion hinges, and upon which conclusions of the greatest

importance to anthropology are supposed to depend. Let us pass over

all that has been said with regard to their manner of occurrence and

association with the gravels and ask them simply what story they tell

of themselves. Does this story, so far as we are able clearly to read

it, speak of a great antiquity and a peculiar culture, or does it hint

rather at vital weaknesses in the position taken by the advocates of

these ideas? We shall see. The history of the utilization of rudely

flaked stones in the attempt to establish a gravel man in America

has never been written, but as read between the lines of paleolithic

literature, it runs about as follows: The theory of a very rude and

ancient people, having a unique culture and certain peculiar art

limitations, was developed in Europe many years ago in a manner well

known and often rehearsed. This people was associated with the ice age

in Europe, and this epoch, with its moraines and till and sedimented

gravels, was found to have been repeated in America. It was the most

natural thing possible that these discoveries should carry with them

the suggestion that man may have existed here as in Europe during that

epoch, and that his culture was of closely corresponding grade. These

were legitimate inferences and warranted the instituting of careful

researches, but it was a dangerous suggestion to put into the minds of

enthusiastic novices with fertile brains and ready pens. The idea was

hardly transplanted to American soil before finds began to be made. The

so-called "types" of European paleoliths suggested the lines upon which

finds here should be made, and everything in the way of flaked stones

connected directly or indirectly with the glacial gravels which had not

yet been fully credited to and absorbed by the inconvenient Indian, was

seized upon as representing the ancient time and its hypothetic people

and culture. In the early days of the investigation the various rude

forms of flaked stones, resulting from failures in manufacture, had not

been studied, and were shrouded in convenient mystery, and they thus

became the foundation of the new archeologic dynasty in America, the

dynasty of the turtle-back. Dr. Abbott states in his first work[4] that

these rude "implements" are not especially characteristic of any one

locality, but seem to be scattered uniformly over the state. Specimens

of every type, he says, are "found upon the surface, and are plowed

up every spring and autumn; but this in no way militates against the

opinion that these ruder forms are far older than the well-chipped

jasper and beautifully-polished porphyry stone-work."[5] At that stage

of the investigation it was not at all necessary that a specimen should

come from the gravels in place or from any given depth, since the

"type" was supposed to be easily recognized and was a sufficient means

of settling the question of age.

[4] Abbott, C. C. The Stone Age in N. J., Sm. Rep. 1875, p. 247.

[5] Ibid, p. 252.

Rude "implements" were called for and they were found. The only

requirements were that they should not be of well-known Indian types,

that they should be rude and have some sort of resemblance to what

were known as paleolithic implements abroad. Since most of these

so-called gravel implements of Europe are also doubtless the rejects

of manufacture resemblances were readily found. The early attempts

to utilize these rejects in support of the theory, and make them

masquerade creditably as "implements" with specialized features and

self-evident adaptation to definite ice-age uses, now appear decidedly

amusing. Gradually, however, the lines have been drawn upon this early

license, and it is to-day well understood by all careful students, that

since the rude forms are so often repeated in modern neolithic refuse,

the only reliable test of a gravel "implement" is its occurrence in

the gravels in place. That a particular "implement," said to have been

obtained from the gravels, is of "paleolithic type," does not in the

least strengthen its claims to being a _bona fide_ gravel implement;

nor does its easy assignment to a "type" give any additional value to

the collector's claim that the gravels said to contain it are implement

bearing. The very names, "rude implement," "paleolithic implement,"

etc., carry with them a certain amount of mysterious suggestion; one

thinks of unique, significant shapes and of strange, archaic uses.

At their mere mention, the great ice sheet looms up with startling

realism, and the reindeer and the mighty mammoth appear upon the

scene. The reader of our paleolithic literature is led to feel that

these antiquated objects carry volumes of history in their worn and

weather-beaten faces, but this is all the figment of fertile brains.

These objects have without exception the appearance of the most

commonplace every-day rejects of manufacture without specialization and

without hidden meaning. They tell of themselves no story whatsoever,

save that of the oft-repeated failure of the aboriginal blade maker in

his struggle with refractory stones. This will be shown with greater

clearness farther on.

But the scheme does not end with the repetition of a European state of

affairs. Our gravel archeologists have not been content to adopt that

feature of the foreign scheme which utterly destroys the paleolithic

race before a higher culture is brought upon the scene. It was

thought to improve upon the borrowed plan by allowing for a gradual

development upward from the paleolithic stage, represented exclusively

by a class of meaningless bits of flaked stone, through a period less

rude, characterized by productions so far advanced as to be assigned

to a definite use. These latter productions consist mainly of rather

large and often rude blades, sometimes plain, but generally notched or

modified at the broader end as if to be set in a handle, or attached to

a spear or arrow shaft. These were assigned to post-glacial times in

such a way as to bridge or partly bridge the great space between the

glacial epoch and the present. They were separated arbitrarily from the

body of the collections of the region, and referred to as probably the

work of an Eskimo race. This arrangement produced a pleasing symmetry

and completeness, and brought the history of man down to the beginning

of the Indian epoch, which is represented by all of those forms of art

with which the red man is historically associated.

Three principal periods are thus thought to be represented by the

finds at Trenton; and in the arrangement of the collections these

grand divisions are illustrated by three great groups of relics, which

are looked upon by the founders of the scheme as an epitome of native

American art and culture. By others this grouping is looked upon as

purely empirical, as an arbitrary separation of the normal art remains

of the historic Indian, not suggested by anything in the nature or

condition of the objects, nor in the manner of their discovery.

The "Eskimo" feature of the scheme requires a more detailed examination

than can be given it here. It may be stated, however, that the

separation of the so-called Eskimo spear points, or whatever they

may be, from the great body of associated articles of flaked stone,

appears to be a highly arbitrary proceeding. That they were extensively

made by the Indians is proved by the occurrence of refuse resulting

from their manufacture on modern shop sites, and that they were used

by the Indian, is equally apparent from their common occurrence on

modern dwelling sites. The exceptionally large size of the argellite

points is readily accounted for by the nature of the material. It was

the only stone of the region well adapted to the manufacture of long

blades or projectile points. Jasper, quartz and flint have such minute

cleavage that, save in rare cases, small implements only could be

made from them. Their peculiar manner of occurrence, described at so

much length by Dr. Abbott,[6] has been given undue consideration and

weight. The phenomena observed may all be accounted for as a result of

the vicissitudes of aboriginal life and occupation within the last few

hundred years as fully and satisfactorily as by jumping thousands of

years backward into the unknown.

[6] Abbott, C. C. Popular Science Monthly, Dec., 1889.

Whatsoever real support there may be for the "Eskimo" theory, either in

the published or the unpublished evidence, it is apparent that under

the present system of solitary and inexpert research, the scientific

world will gain little that it can utilize without distrust and danger.

Whatsoever may be the final outcome--which outcome is bound to be the

truth--it is clear that there is little in the present evidence to

warrant the separation of a "paleolithic" and an "Eskimo" period of art

from that of the Indian.

That the art remains of the Trenton region are essentially a unit,

having no natural separation into time, culture or stock groups,

is easily susceptible of demonstration. I have already presented

strong reasons for concluding that all the finds upon the Trenton

sites are from the surface or from recent deposits, and that all may

reasonably be assigned to the Indian. A find has recently been made

which furnishes full and decisive evidence upon this point. At Point

Pleasant, on the Delaware, some twenty-five miles above Trenton, there

are outcrops of argillite, and here have been discovered recently the

shop sites upon which this stone was worked. There are two features

of these shops to which the closest attention must be given. The

first is that they are manifestly modern; they are situated on the

present flood plain of the Delaware, and but a few feet above average

water level, the glacial terrace here being some forty or fifty feet

in height. These shops, therefore, represent the most modern phases

of aboriginal industry, and may have been occupied at the coming of

William Penn. The second point is that every type of flaked argillite

found in the Trenton region, associated with the gravels or otherwise,

is found on this site. It was to a certain extent a quarry site, for

the great masses of argillite brought down by the floods were here

broken up and removed from the river banks or bed. It was a shop site,

for here the articles, mainly blades, were roughed out, and it was

also a dwelling place--a village site--where all the specialized forms

of flaked stones made from the blades were prepared for use. Here are

found great numbers of the rude failures, duplicating every feature

of the mysterious "paleolith" with which our museums are stocked,

and exhibiting the same masterly quitting at just the point "where

no further shaping was possible."[7] Here we see the same boldly

manipulated "cutting edge," the "flat bottom" and "high peak," and the

same mysteriously weathered and disintegrated surfaces, so skillfully

made, by a nice balancing of accidents,[8] to tell the story of

chronologic sequence in deposition.

[7] Abbott, C. C. Smithsonian Report, 1875, p. 248.

[8] Ibid. Primitive Industry, p. 487.

Beside the failures, we have here, as on other quarry shop sites, the

evidence of more advanced work, the wide, thick, defective blades, and

many of the long, thin blades broken at or near the finishing point.

Here, too, just back of the roughing-out shops, are the dwelling sites

from which many specialized forms are obtained. The "Eskimo" type

is fully represented as well as the ordinary spear point, the arrow

point, and the perforator of our Indian. There is not a type of flaked

argillite known in the Delaware valley that may not be duplicated

here on this modern Indian site, and this has been known by local

archeologists for years. Why so little has been said about the matter

is thus explained. Dr. Abbott, in 1890, discovering this site, and

finding "typical paleolithic implements" (the ordinary ruder forms of

rejects) among the refuse, was so entirely at a loss to explain the

occurrence that he felt compelled to again "take up the examination

of the gravel deposits of the valley of the Delaware" with the hope

of "finally solving the problem."[9] The true conditions would have

been at once apparent to any one not utterly blinded by the prevailing

misconceptions.

[9] Abbott, C. C. Annual Report of the Curator of the Museum of

American Archeology, University of Pennsylvania. No. 1, p. 7.

The entire simplicity of the archeologic conditions in the Delaware

valley may be further illustrated. Had William Penn paused in his

arduous traffic with the tawny Delawares, and glanced out with

far-sighted eyes from beneath the pendant branches of the great elm

at Shackamaxon, he might have beheld an uncouth savage laboriously

fabricating rude ice age tools, making the clumsy turtle-back, shaping

the mysterious paleolith, thus taking that first and most interesting

theoretical step in human art and history. Had he looked again a few

moments later he might have beheld the same tawny individual deeply

absorbed in the task of trimming a long rude spear point of "Eskimo"

type from the refractory argillite. If he had again paused when another

handful of baubles had been judiciously exchanged, he would have seen

the familiar redskin carefully finishing his arrow points and fitting

them to their shafts preparatory to a hunting and fishing cruise on the

placid Delaware. Thus in a brief space of time Penn might have gleaned

the story of the ages--the history of the turtle-back, the long spear

point and their allies--as in a single sheaf. But the opportunity was

wasted, and the heaps of flinty refuse left upon the river bank by the

workmen were the only record left of the nature of the work of that

day. Two hundred years of aboriginal misfortune and Quaker inattention

and neglect have resulted in so mixing up the simple evidence of

a day's work, that it has taken twenty-five years to collect the

scattered fragments, to sift, separate and classify them, and to assign

them to theoretic places in a scheme of culture evolution that spans

ten thousand years.

Yet is there really nothing in it all, in the theories, the

observations, the collections and the books? Do I speak too positively

in condemnation of the results of years of earnest investigation?

Perhaps so, but the voluminous testimony is so overloaded with

inaccuracies, the relics of unscientific method and misleading

hypotheses, that every item must be sharply questioned; and the

conclusions reached so far overstep the limits warranted by the

evidence, that heroic measures alone can be effectual in determining

their exact value. If, as many believe, vital errors have been

embodied in the evidence presented by the advocates of the theory,

it is impossible to state the case too strongly. Error once fully

absorbed into the literature of science has many advantages over the

tardy truth; it is strongly fortified and must be attacked and exposed

without fear or favor. Truth involved with it cannot permanently

suffer. If the twin theories of a gravel and a paleolithic man in

eastern America are to be assailed as unsound or as not properly

supported, it should be done now while the originators and upholders

are alive and alert to sustain their positions or to yield to the

advances of truth. I do not wish to wrongly characterize or to unduly

minimize the evidence brought to bear in favor of these theories. I do

intend, however, to assist the world so far as possible in securing an

exact estimate of all that has been said and done, and all that is to

be done.

In a previous article I have examined the evidence relating to

paleolithic art in the eastern United States, and have indicated

its utter inadequacy and unreliability. In this paper the testimony

relating to the occurrence of gravel art, in the locality most fully

relied upon by advocates of the theory, has been partially reviewed

and subjected to the strong light of recent observations. It is found

that the whole fabric, so imposing in books and museums, shrinks away

surprisingly as it is approached. The evidence furnished by the bluff

face and by the railway cutting, the two leading sites, is fatally

weakened by the practical demonstration of the fact that the gravels

proper are at these points barren of art remains. In endeavoring to

naturalize an immigrant hypothesis, our gravel searchers, unacquainted

with the true nature of the objects collected and discussed, and little

skilled in the observation of the phenomena by means of which all

questions of age must be determined, have undoubtedly made grievous

mistakes and have thus misled an expectant and credulous public.

The articles themselves, the so-called gravel finds, when closely

studied are found to tell their own story much more fully and

accurately than it has heretofore been read by students of archeology.

This story is that the art of the Delaware valley is to all intents and

purposes a unit, that there is nothing unique or especially primitive

or ancient and nothing un-Indian in it all. All forms are found on

demonstrably recent sites of manufacture. The rude forms assigned

by some to glacial times are all apparently "wasters" of Indian

manufacture. The large blades of "Eskimo" type are only the larger

blades, knives and spear points of the Indian, separated arbitrarily

from the body of the art-remains to subserve the ends of a theory,

certain obscure phenomena of occurrence having been found to give color

to the proceeding. To place any part of this art, rude or elaborate,

permanently in any other than the ordinary Indian category will take

stronger proofs than have yet been developed in the region itself.

The question asked in the beginning, "Are there traces of glacial man

in the Trenton gravels?" if not answered decisively in the negative,

stands little chance, considering present evidence, of being answered

in the affirmative. In view of the fact that numerous observations

of apparent value have been made in other sections, there is yet

sufficient reason for letting the query stand, and we may continue to

cherish the hope that possibly by renewed effort and improved methods

of investigation, something may yet be found in the Trenton gravels

clearly demonstrative of the fascinating belief in a great antiquity

for the human race in America.

The evidence upon which _paleolithic man_ in America depends is so

intangible that, unsupported by supposed analogies with European

conditions and phenomena, and by the suggestions of an ideal scheme

of culture progress, it would vanish in thin air; and if the theory of

a _glacial man_ can summon to its aid no better testimony than that

furnished by the examples examined in this paper, the whole scheme,

so elaborately mounted and so confidently proclaimed, is in imminent

danger of early collapse.

=W. H. Holmes.=

The Journal of Geology, January-February 1893 A Semi-Quarterly Magazine of Geology and Related Sciences · 第 5 / 22 题