6. _Sandoval, Marion County._—Before the American Association for the

Advancement of Science, at its meeting in 1856 (Proc. Amer. Assoc. Adv.

Sci., vol. X, 1857, p. 163), the geologist J. W. Foster stated that at

Sandoval, on the Illinois Central Railroad, mastodon remains had been

found at a depth of 12 feet, under conditions similar to those existing

near Beaucoup, in Washington County. Here again there is a poverty of

information. In this county there is, in many places, a very compact

white clay overlying the Illinoian drift. The relations of this to the

drift are not well understood. At a depth of 12 feet in this clay the

Illinoian drift might not be reached in some places, while at this depth

in the drift a pre-Illinoian deposit might be encountered.

7. _Near Niantic, Macon County._—In 1873 (Geol. Surv. Illinois, vol. V,

p. 308), A. H. Worthen gave an account of finding some remains of a

mastodon in this county, near the line between it and Sangamon County

and between Illiopolis and Niantic, on a farm then owned by Mr. William

F. Correll. The American Journal of Science, volume 50, page 422, in a

note regarding the discovery, states that the place is 1.5 miles

southeast of Illiopolis. A well was being sunk in a low, spongy piece of

ground, which had evidently been a pond filled up by wash from the

surrounding higher ground. At a depth of 4 feet two tusks were found,

one measuring 7 feet in length and about 8 inches in circumference, the

lower jaw containing the teeth, the teeth of the upper jaw, and some

small bones. Besides these remains of the mastodon, there were found

some bones of the buffalo and deer, and two antlers of an elk. The bones

of these yet existing species are said to have been found at the same

depth as the mastodon bones, but were of a lighter color and less

decayed.

The bones were partly embedded in a light-gray quicksand, filled with

small fresh-water shells. Above this was 4 feet of black peaty soil.

In the eighth volume of the Geological Survey of Illinois, on page 23,

Worthen wrote that some of the smaller bones of the mastodon and those

of the other animals, except the antlers of the elk, were preserved in

the State Museum of Natural History, at Springfield.

In the museum of the Chicago Academy of Science are, as reported by the

curator, Frank C. Baker, to Netta C. Anderson (Augustana Lib. Pubs. No.

5, p. 14), two rami of the lower jaw and several molars of a mastodon,

all well preserved. They are labeled as having been found in Macon

County, “6 miles from Abraham Lincoln’s first home” and as having been

presented by C. F. Günther. With these is an upper tooth which probably

belonged with the same lot as the lower jaw. There can hardly be a doubt

that this jaw and these teeth are those described by Worthen. The finder

had probably sold them to Mr. Günther, of Chicago, who had a private

collection.

The region about Niantic is within the area of the Illinoian drift, so

that the bones must have been deposited in the pond after the passing

away of the Illinoian ice-sheet.

Dr. F. C. Baker (Bull. Univ. Illinois, vol. XVII, p. 300), in speaking

of this case, says that the deposit rests on Illinoian drift and hence

it appears referable to the Sangamon interval. It seems to the present

writer that these animals belong to a later time, possibly the Late

Wisconsin. The locality is about 5 miles from Sangamon River. One might

suppose that time enough had elapsed after the Illinoian for the

drainage of the pond that must once have been there. Also, Worthen in

his account states the uplands are covered by loess from 6 to 20 feet in

thickness. One might expect that the pond would have been filled up with

the loess which had blown into it and which had been washed into it from

the surrounding higher land. These considerations are of course not

final. The Wisconsin moraine is not far away, and it is possible that

outwash from this was responsible for the pond and that the animals

lived after the glacier had passed away.

8. _Warsaw, Hancock County._—In Netta C. Anderson’s “Preliminary List of

Fossil Mastodon and Mammoth Remains in Illinois and Iowa” (Augustana

Lib. Pubs. No. 5) it was reported by Mr. C. K. Worthen, of Warsaw, that

a part of a mastodon tooth had been found sticking out of a bank of a

creek 5 miles below the town mentioned.

The writer has seen in the collection of the Philadelphia Academy, from

near Warsaw, a part of a lower second molar, labeled as having been

found at a depth of 10 feet, 3 miles east of the Mississippi River. It

was presented by G. W. Hall.

9. _Manito, Mason County._—In the U. S. National Museum is a large upper

right second molar, No. 7801, presented in 1913 by Mr. John Wiedmer, of

St. Louis. This was found by his workmen near Manito, in a peat deposit,

at a depth of 5 feet, embedded in the top of a layer of sand which

underlies the peat. At about the same depth was found a part of the

skull of _Symbos cavifrons_, also presented to the U. S. National

Museum. The place of discovery more exactly given is in section 22,

township 23, range 6.

This locality is within the area of the Illinoian drift. On the east, a

few miles away, is the foot of the great Shelbyville moraine; while very

near, toward the west, there are, according to Leverett (op. cit., plate

VI) widely spread deposits brought down by the Illinois River from the

Wisconsin ice-sheet. The geological conditions here seem to make it

probable that both animals lived near the close of the Wisconsin stage.

There may, however, have been a considerable interval between the times

of the two animals; for peat, sometimes at least, accumulates very

slowly. In proof of this may be cited the case of mastodons found near

the surface of peat swamps in Michigan. In the same peat-swamp at Manito

were found at depths of 3 or 4 feet some Indian flint implements. These

are in the collection of the U. S. National Museum.

10. _Knox County._—On page 14 of Netta C. Anderson’s list, already

mentioned, Professor Albert Hurd, curator of the museum of Knox College,

Galesburg, reported that there was in the collection a well-preserved

tooth of a mastodon found in the bed of Spoon River, which runs across

the southeastern part of the county. Exactly where along this stream the

tooth was discovered is not on record.

11. _Cambridge, Henry County._—In Netta C. Anderson’s list, on page 12,

Professor Frank C. Baker, then curator of the Chicago Academy of

Science, reported that there is in the collection a part of a tusk of a

mastodon, found at Cambridge, in digging a well, at a depth of 16 feet.

In this case one can not be certain that the tusk did not belong to one

of the elephants. From information accompanying the specimen one can

determine little about the exact geological age of the animal. It is

probably post-Illinoian.

12. _Rural Township, Rock Island County._—Dr. J. A. Udden (in Netta C.

Anderson’s list, p. 18) reported that there is in the collection of

Augustana College, Rock Island, a well-preserved tooth of a mastodon,

found in 1900, in a creek in the township named, in the southeastern

corner of the county. Udden gives the locality as being in section 19,

township 16 north, range 1 west.

In the same institution (J. A. Udden, Augustana Coll., Pub. No. V, p.

12) is a part of a proboscidean tusk, referred to the mastodon, which

Dr. Udden states was found near Milan, at the base of the loess, in the

red oxidized layer of the Illinoian boulder clay. The locality is on the

north side of Rock River and on the east side of the Milan road south of

Rock Island. The conditions would seem to indicate that the animal had

lived about the close of the Illinoian drift stage.

About June 15, 1916, Mr. A. Daxon, of Omaha, Nebraska, sent photographs

of two mastodon teeth to the U. S. National Museum for identification.

These teeth were found in Bowling Township, Rock Island County, 10 or 12

miles south of Rock Island, but no further information about them has

been secured.

Professor J. A. Paarmann, curator of the Davenport, Iowa, Academy of

Sciences, has written that he had seen a finely preserved mastodon tooth

which had been picked up on the surface of the ground a mile west of

Milan. The land around about is swampy. The tooth was in the possession

of Edward Herbert, Rock Island, Illinois, but the present writer has not

been able to get any information from him.

13. _Sterling, Whiteside County._—In the U. S. National Museum (No.

4222) is a mastodon molar, recorded as found near the town named. It was

transmitted through the U. S. Geological Survey and credited to T. A.

Schroder. It is said to have been found with other teeth and parts of

the skeleton, so that there is little probability that the skeleton was

disturbed after its original interment. It is to be regretted that so

little information was allowed to come with the specimen.

Sterling is in a region of very complicated Pleistocene geology. South

of it is an extensive region of swamps and deposits referred by Leverett

(op. cit., plate VI) to “sand and gravel plains of Wisconsin age.” North

of the town is drift mapped by Leverett as Iowan, but which is now

regarded as Illinoian. As to the age of the tooth in question, no

probable conclusion can be formed, except that it is of post-Illinoian

time.

27. _Walnut, Bureau County._—In the American Museum of Natural History,

in New York City, there are three molars (No. 10666), belonging to each

side of the upper jaw of a mastodon which was found somewhere near

Walnut, in Bureau County.

14. _New Milford, Winnebago County._—According to S. P. Lathrop (Amer.

Jour. Sci., vol. XII, 1851, p. 439), a large tooth of a mastodon, in a

fine state of preservation, was found in the Kishwaukee River, being

brought up in a seine.

The geology about New Milford is not well worked out. The deposits along

the Kishwaukee were probably laid down during or shortly after the

Wisconsin stage.

15. _Byron, Ogle County._—In 1873 (Geol. Surv. Illinois, vol. V, p.

110), James Shaw reported that a tooth identified as that of a mastodon

had been found, in 1858, in a tributary of Stillman’s Run, somewhere in

the region about Byron. The locality is low and marshy. The tooth is

described as having been a ponderous grinder, weighing 7.5 pounds, and

to have been covered with a black and shining enamel. A large mastodon

tooth, just out of the water, might attain such a weight. The statement

regarding the enamel confirms the identification.

Shaw reported further that a large leg-bone, supposed to belong to a

mastodon, had been found 2 or 3 miles above Byron, along the bank of

Rock River, 5 feet below the surface and about 15 feet above ordinary

water-level. It was sent to the State Museum at Springfield. This may

have belonged to one of the elephants.

_Harper, Ogle County._—In Netta C. Anderson’s list, on page 15, is a

report from Miss Abba Eager, of Forreston, concerning a tooth of a

mastodon found on the farm of Mr. Gross, in Forreston Township, about a

mile south of Harper, in the bed of a small stream. Another tooth had

been found there a short time before.

Byron is on Rock River, and the tooth was probably in alluvial deposits

laid down after the recession of the Wisconsin ice. Harper is near the

western border of the county and Illinoian drift covers the country. All

that can be said in the case of the teeth found is that the possessors

lived after the Illinoian stage.

16. _Urbana, Champaign County._—In the collection of the Illinois State

University the writer saw a lower right last molar of a mastodon, found

June 1, 1911, at Crystal Lake park, 1.5 miles northeast of the

university.

_Pesotum, Champaign County._—In 1909, Mr. Rufus M. Bagg (Univ. Ill.

Bull., vol. VI, No. 17, p. 49) recorded the fact that a mastodon tooth

with some bones had been found near Pesotum, on the farm of Mr. Pfeffer,

at a depth of 3.5 feet, in digging a ditch.

Inasmuch as this whole region is covered by Wisconsin drift, the animal

could not have lived there before the ice which deposited the Champaign

moraine had withdrawn. It probably lived there long after the ice had

retreated, possibly about the time when the megalonyx, whose claw alone

is left as a memorial of his former existence, lived in that region.

17. _Edgar County._—In 1870 (Geol. Surv. Illinois, vol. IV, p. 266),

Frank H. Bradley, in describing the topography of Edgar County, stated

that a nearly perfect skeleton of a mastodon had been found in one of

the sloughs of the prairie region which prevails in the western part of

the county. It was said that after having been exhibited over that

region it was sold to some museum in Philadelphia, but the writer has

been unable to obtain further information.

In 1857 (Proc. Amer. Assoc. Adv. Science, vol. X, Nat. Hist., p. 10), J.

W. Foster reported that a jaw and three teeth of a mastodon had been

found in yellow clay, about 3 feet from the surface, at Bloomfield, in

this county. This name has disappeared from the maps and gazetteers.

A little of the southern border of the county is occupied by Illinoian

drift, but the greater part is covered by drift of Wisconsin age. The

mastodons reported probably lived after the retirement of the last ice

of the Glacial period.

18. _Fairmount, Vermillion County._—In 1870, Frank H. Bradley (Geol.

Surv. Illinois, vol. IV, p. 242) stated that in September 1868 remains

of a mastodon were found 2 miles southeast of Fairmount. He described

the locality as having a black soil, from 1 to 2 feet deep, and

underlain by a light-brown tenacious clay, filled with the shells of

_Lymnæa_, _Physa_, _Planorbis_, _Sphærium_, etc. The bones of the

mastodon lay partly in this marly clay, but the tip of one tusk rose to

within 13 inches of the surface. The bones were considerably decayed,

but Bradley thought this had resulted from the previous draining of the

land and the accession of air to the bones. Some fragments of this

skeleton are in the collection of the Chicago Academy of Science. The

locality is very close to the northern edge of the Champaign moraine.

19. _Iroquois and Vermillion Counties._—Under this number must be

recorded 3 mastodons found at as many different places. Hoopeston is in

Vermillion County, but evidently the mastodon credited to this place was

found in Iroquois County.

_Six miles northwest of Hoopeston._—In 1881 (2d Ann. Rep. Dept. Statist.

and Geol. Indiana, p. 18; of complete report, p. 386), John Collett gave

an account of the discovery of a nearly complete skeleton of a mastodon

about 6 miles northwest of Hoopeston. The locality is evidently in the

southwestern corner of township 24 north, range 11 east. Each tusk

formed a full quarter of a circle, was 9 feet long, 22 inches in

circumference at the base, and weighed, while yet wet, 175 pounds. The

lower jaw was well preserved, nearly 3 feet long, and contained a

magnificent set of teeth. The leg-bones, when joined at the knee, made a

length of 5.5 feet. What was supposed to be remains of herbs and grasses

which the animal had eaten were found between the ribs.

The following mollusks are reported as being found in the same clay as

that which contained the bones: _Pisidium abditum?_, _Valvata

tricarinata_, _Valvata striata?_, _Planorbis parvus_. It is stated that

these shells live at present all over the States of Illinois, Indiana,

and Michigan, and indicate that the climate of the mastodon’s day was

greatly like that of the present in that region.

Dr. John M. Clarke (56th Ann. Rep. New York State Museum, published in

1904, p. 926) states that the tusks of this mastodon are now in the

American Museum of Natural History and form a part of a mounted

mastodon. The lower jaw is also in that museum. The writer has seen this

jaw, No. 14345, and there are in it 2 tusks of considerable size, such

as the writer has supposed characterized _Mammut progenium_. In case

this species shall prove to be a natural one it continued from the first

interglacial or even earlier to the close of the Wisconsin. This is the

mastodon to which Blatchley refers (22d Rep. Indiana Geol. Surv., p.

90).

_East Lynn, Vermillion County._—The writer has a note to the effect that

some mastodon remains were found near this place in 1881, but the

authority can not be cited. East Lynn is 7 miles west of Hoopeston.

_Rossville._—Dr. Rufus M. Bagg, jr. (Univ. Ill. Bulletin, vol. VI, No.

17, 1909, p. 49, plate IV, figs. 2, 3) reported the finding of a

mastodon’s tooth near Rossville, on the banks of the North fork of

Vermillion River, about 7 miles south of Hoopeston. The figures indicate

that the tooth is the lower right first molar, 127 mm. long and 85 mm.

wide.

All three of the mastodons mentioned were evidently buried in pond and

swamp deposits which lie on or near the Bloomington moraine of the

Wisconsin drift. They lived, therefore, after the disappearance of the

last glacial ice-sheet and probably long after that disappearance.

20. _Beecher, Will County._—At Hebron, Indiana, the writer has seen

various bones of mastodons which had been unearthed in the region about

Beecher by Mr. Jacob Davis, in dredging large ditches. He described

these bones as amounting to “about two wagonloads.”

Mr. George Langford, of Joliet, Illinois, stated in a letter that it is

reported that over a dozen mastodons have been found on one farm near

Beecher in the last 10 years. Mr. Langford sent also a geological

section (fig. 1) taken along Trim Creek. Besides the mastodon remains

found there, he obtained a large part of an antler of _Cervalces_. The

locality is given as the northwest quarter of the southwest quarter of

section 11, township 33 north, range 14 east, 3 miles north of east of

Beecher.

This locality is on the Valparaiso moraine, the last formed before the

Wisconsin ice withdrew into Lake Michigan. It was, however, probably

long after this that the mastodons lived and died there.

Mr. Langford’s account seems to indicate that, after the deposition of

the Valparaiso moraine and the withdrawal of the ice-sheet, there was

left along what is now Trim Creek a shallow lake, which became gradually

filled by washings from the moraine. This at length became a marsh and

produced peat and other vegetable muck. At one stage the surface appears

to have been occupied by a forest, which later became covered by about 4

feet of sandy soil. Over this is 2 feet of black peat, itself overlain

by probably Recent deposits.

[Illustration:

FIG. 1.—Geological section of Trim Creek. Beecher, Will County,

Illinois.

]

1. Moraine.

2. Wisconsin drift.

3. Alluvium.

4. Black peat.

5. Sandy soil, with bones.

6. Peat, sand, vegetable matter.

7. Same stained brown; with gravel.

Mr. Langford has written that all the mastodon bones were found above

the gravel, some of them 5 or 6 feet below the surface. Antlers of the

elk occurred only above the mastodon bones.

21. _Morris, Grundy County._—In 1870, Frank H. Bradley (Geol. Surv.

Illinois, vol. IV, p. 193) stated that in 1868 the remains of a mastodon

were found at Turner’s “strippings,” about 3 miles east of Morris. These

bones lay under 18 inches of black mucky soil and about 4 feet of

yellowish loam, and rested on about a foot of hard blue clay, which

itself covered the coal. The bones were mostly badly decayed and the

greater part were broken and thrown away by the miners; but some,

including a part of a lower jaw and 3 teeth, were sent to the State

Cabinet at Springfield. The locality was regarded by Bradley as part of

an old river bottom.

In 1871, Worthen referred to the same or another mastodon which had been

found in the vicinity of Morris. He stated that it had been found in

undisturbed drift, 8 feet below the surface. The blue clay on which lay

the mastodon described by Bradley may have been brought down from the

ice which deposited the Valparaiso moraine. The loam and muck were

probably deposits of considerably later date. It is not probable that

the Worthen mastodon was buried in undisturbed drift.

22. _Whitewillow, Kendall County._—At a locality in this county, near

Whitewillow, have been found many mastodon bones and those of various

other animals. The place is 5 miles west by north of Minooka and 15

miles west of Joliet. Collections have been made there by Dr. E. S.

Riggs, of the Field Museum of Natural History, Chicago, and by Mr.

George Langford, of Joliet. Mr. Langford wrote that his collection was

made in township 35 north, range 8 east, and probably section 27. The

farm belonged to John Bamford. Apparently Dr. Riggs’s collection was

made at the same place. Further details will be found on page 337.

Dr. Riggs reported in Netta C. Anderson’s list, already referred to

several times, that in 1902 at least six skulls and numerous other bones

had been found in a well 10 feet in diameter. Above these were bones of

bison, deer, and elk.

23. _Yorkville, Kendall County._—In the Field Museum of Natural History

is a composite skull of a mastodon, part of which was found somewhere

about Yorkville; but the writer knows nothing more definite.

Yorkville is situated on Fox River, near the northwestern border of the

Marseilles moraine.

24. _Aurora, Kane County._—H. M. Bannister, in 1870 (Geol. Surv.

Illinois, vol. IV, p. 113) wrote as follows: “A portion of the remains

of a mastodon, consisting of the tusks and several teeth, was obtained

in excavating the track for the Chicago, Burlington, and Quincy Railroad

near the city of Aurora, and are now preserved in the museum of Clark

Seminary at that place.”

These same remains were described by the geologist C. D. Wilbur (Trans.

Ill. Nat. Hist. Soc., vol. I, p. 59, figs. 1 to 3). He stated that both

tusks and seven teeth were found, all well preserved. The tusks were 10

feet long and 10 inches in diameter at the base; they were curved upward

and considerably worn at the ends on the underside. Charles Whittlesey

(Smithson. Contrib. Knowl., vol. XV, art. 3, p. 16) probably referred to

these remains. He stated that they were found in a swamp.

Probably one of these teeth was sent to Dr. J. C. Warren, of Boston, the

author of “The _Mastodon giganteus_ of North America.” It is described

in the second edition of this monograph, on page 76. In the Proceedings

of the Boston Society of Natural History, volume IV, page 376, Warren

described a tooth, probably the same, which had been found 40 miles west

of Chicago, at a depth of 8 feet. He said it was the largest mastodon

tooth then known.

In Netta C. Anderson’s list, page 10, it is reported that in 1875 some

mastodon remains were found about 8 miles southwest of Naperville, which

is in Du Page County. The locality would be not far from the common

meeting-point of Kane, Kendall, Will, and Du Page Counties; also

probably within 8 miles of Aurora. The remains, whatever they were, were

donated to the museum of Jennings Seminary, Aurora.

In Netta C. Anderson’s list it is stated that teeth and a tusk of a

mastodon were found, in 1853, by workmen extending the Burlington

Railroad south of Aurora. They were in a swamp near Fox River, where the

Burlington shops are situated. These remains, probably the same as those

above described, were presented to Jennings Seminary.

25. _Batavia, Kane County._—This town is in Kane County, about 9 miles

north of Aurora. In Netta C. Anderson’s list, on page 13, Dr. E. S.

Riggs, of the Field Museum of Natural History, reported that, somewhere

in this vicinity, in cutting a ditch to drain a marshy lake of about 200

acres, some leg-bones and vertebræ of mastodon were found in a sticky

clay from about 5 to 7 feet from the surface. Dr. Riggs writes that

along the same ditch he picked up a jaw of the existing species of elk

and some bison bones.

_Maple Park, Kane County._—Doctor Rufus M. Bagg recorded in 1909 (Bull.

Univ. Ill., vol. VI, No. 17, p. 50, plate IV) the discovery of a large

part of the skeleton of a mastodon. It was found at a depth of 6 feet.

The exact location was not given.

The whole of Kane County lies between or is covered by the Bloomington

and Marseilles moraines, and the mastodons found there must have lived

after the retirement of the ice which produced those moraines.

26. _Glencoe, Cook County._—In Netta C. Anderson’s list, on page 9,

Professor James G. Needham, of Lake Forest University, reported that a

fragment of a mastodon’s tooth had been dug up while a ditch in glacial

drift was being made.

Glencoe is situated on the eastern till ridge, as described by Leverett

(Monogr. U. S. Geol. Surv., XXXVIII, p. 381), the one nearest the

western shore of Lake Michigan. If the tooth mentioned really occurred

in undisturbed drift, it is possible that it was redeposited from some

earlier interglacial deposit.

The Pleistocene of North America and its vertebrated animals from the states east of the Mississippi River and from the Canadian provinces east of longitude 95° · 第 14 / 57 段