I looked about for varieties, but failed to detect any special

character by which it could be referred to any of the varietal names

given in catalogues, and concluded that it was N. poeticus pure and

simple. Pulmonarias were abundant along the road, as also in the whole

region of the Pyrenees, the character of the leaves varying greatly,

some being spotless, some full of irregular white patches, others with

well defined round spots. They varied, too, from broad heart-shaped to

narrow lanceolate, and I soon concluded that it was hopeless to

attempt any division of the class founded upon the leaves.

Besides the beautiful flowers of Scabious mentioned before, a new

feature in the meadows here was the abundance of Astrantia major. A

pure white Hesperis matronalis was also common, but I saw no purple

forms of it. Geranium phæum also grew everywhere in the fields, the

color of the flower varying a good deal. Hepaticas were not so common

by the roadside here as at Eaux Bonnes, but are generally distributed.

Many of them have their leaves beautifully marbled, and I selected and

brought away a few of the best, in hopes that they may keep this

character. I was struck everywhere by the one-crowned appearance of

the Hepaticas, as if in their second year from seed.

On the mountains, where they were still in flower, I did not find the

colors mixed, but on one mountain they would be all white, on another

all blue. I do not recollect to have seen any pink. Meconopsis

cambrica is common in the Pyrenees. I observe that in Grenier's

"French Flora" the color of the flower is given as "jaune orange," but

I never saw it either in England or in France with orange flowers till

I saw it covering a bank by the side of the road to the Vallee du Lys.

I was too much struck by it to delay securing a plant or two, which

was lucky, for when we returned every flower had been gathered by some

rival admirers.

Another expedition from Luchon is to the Lac d'Oo. This, too, is

famous for flowers; but especially so is a high valley called Val

d'Esquierry, 2,000 ft. or 3,000 ft. above the village d'Oo, at which

the carriage road ends. Botanists call this the garden of the

Pyrenees, and, of course, I was most anxious to see it.

The landlord of our hotel was quite enthusiastic in his description of

the treat in store for me, enumerating a long catalogue of colors, and

indicating with his hand, palm downward, the height from the ground at

which I was to expect to see each color. I was afterward told that he

had never been to the famous valley, being by no means addicted to

climbing mountains.

During the first part of the drive from Luchon we saw hanging from the

rocks by the roadside large masses of Saponaria ocymoides, varying

much in the shade of color of the flowers. This is a plant which I

find it better to grow from cuttings than from seed. The best shades

of color are in this way preserved, and the plants are more flowery

and less straggling. As we got near the end of the carriage road, the

meadows became more crowded with flowers known in England only in

gardens.

Besides such plants as Geranium pyrenaicum growing everywhere on the

banks, the fields were full of a light purple geranium--I think

sylvaticum. Here, too, I noticed Meconopsis cambrica with orange

flowers. Narcissus poeticus was also there, and so were some splendid

thistles, large and rich in color. But the most remarkable part of the

coloring in the meadows was produced by different shades of Viola

cornuta carpeting the ground. We noticed this plant in many parts of

the Pyrenees, but here especially.

From the end of the road I started with a guide for the promised

garden of the Val d'Esquierry. By the side of the steep and winding

path I noticed Ramondia pyrenaica--the only place I saw it in the

Luchon district. Other notable plants were a quantity of Anemone

alpina of dwarf growth and very large flowers, covering a green knoll

near a stream. A little beyond, Aster alpinus was in flower, of a

bright color, which I can never get it to show in gardens. These, with

the exception of a few saxifrages and daffodils of the variety

muticus, were about the last flowers I saw there.

[Illustration: GROUP OF ALPINE FLOWERS]

Promise of flowers there was in abundance. Aconites, I suppose

napellus, and also that form of A. lycoctonum with the large leaves

known as pyrenaicum, were just enough grown to recognize. The large

white Asphodel, called by French botanists A. albus, but better known

in gardens as A. ramosus, which grows everywhere in the Pyrenees, and

the coarse shoots of Gentiana lutea were just showing.

Further on the daffodils were only just putting their noses through

the yellow dead grass, which the snow had hardly left and was again

beginning to whiten, for the rain, which had been coming down in

torrents ever since I left the carriage and had wet me through, had

now changed to snow. Still I went on, in spite of the bitter cold,

hoping that I should come to some hyperborean region where the flowers

would be all bright; but my guide at last undeceived me, and convinced

me that we were far too early, so we went down again, wiser and

sadder, and I advise my friends who wish to see the Val d'Esquierry in

its beauty not to visit it before July at the earliest.

I have still one mountain walk to describe, a far more successful one,

but it must be deferred till another week.--_C. Wolley Dod, in the

Garden._

* * * * *

Turtle shells may be softened by hot water, and if compressed in this

state by screws in iron or brass moulds, may be bent into any shape,

the moulds being then plunged into cold water.

* * * * *

A CENTURY PLANT IN BLOOM.

A huge agave, or century plant, is now blooming at Auburn, N.Y. A few

days ago the great plant became tinged with a delicate yellowish-white

color, as its 4,000 buds began to develop into the full-blown flowers,

whose penetrating fragrance, not unlike that of the pond lily, now

attracts swarms of bees and other insects. The plant was purchased in

1837 by the owner, and was then twelve years old. For half a century

the agave has lain around his greenhouses in company with several

others, and no special care has been taken of it, except to protect it

somehow in winter, that it might be fresh for the next summer's

growth. The plant has always been a hardy specimen, and required

little care. Its whole life, now speedily approaching a termination in

the fulfillment of the end of its existence--flowering--has been a

sluggish course. Its growth has been steady and its development

gradual. Occasionally it has thrust out a spiked leaf until, in size,

it became greater than its fellow plants and took on the likeness of

an enormous cabbage which had been arrested in its development and

failed to attain perfection. Early last April its appearance began to

undergo a decided change. Its resemblance to a cabbage lessened, and

it began to look like a giant asparagus plant. On April 12, the great

fleshy leaves, massed together so as to impress the imprint of their

spines upon one another, began to unfold, and a thick, succulent bud

burst up amid the leaves. Slowly the stalk developed from the bud and

assumed gigantic proportions. Green scales appeared in regular

arrangement about the stalk, marking the points from which lateral

branches were to spring. The thick stalk, tender and brittle at first

as new asparagus, became tough and hard enough to resist a knife, and

its surface assumed the gritty character of the leaves of the plant.

The low roof of the hothouse became an obstruction to further growth,

and had to be removed. Lateral limbs were, at a later period, thrust

out in great numbers, each of them bearing small branches, as do

strawberry plants, on which hang sprays of buds in bunches of from

three to ten, making in all many hundreds, all waiting for the

completion and blooming of the topmost buds. The inflorescence of the

century plant is peculiar, and the appearance of flowers on the lower

branches may be simultaneous with, or consecutive to, the blossoming

on the upper limbs. With the appearance of the lateral outshoots the

great aloe lost its likeness to asparagus, and at present bears

resemblance to an immense candelabra. The plant is now fully matured,

and has a height of twenty-seven feet. There are thirty-three branches

on the main stem, and, by actual count, one of the lateral limbs was

found to bear 273 perfect buds, some of whose green sepals have

spread, revealing the yellowish-white petals and essential parts of

the plant. The ample panicles crowded with curious blossoms are, as,

indeed, the Greek name of the plant--agave--signifies, wonderful.

There is a pathetic view to be taken of the great plant's present

condition. For years it has been preparing to flower, and the shoot it

has sent up is the dying effort. The blossoms carry in them the life

of new plants, and the old plant dies in giving them birth. It is

commonly supposed that this plant, the _Agave Americana_, or American

aloe, blooms only at the end of 100 years, hence the common name

century plant.

Only two plants are on record among the floriculturists as having

bloomed in New York State. Thirty years ago, a century plant, of which

the Casey aloe was a slip, flowered in the greenhouses of the Van

Rensselaer family at Albany. In 1869, a second plant blossomed at

Rochester. At present, two aloes, one at Albany, the other at

Brooklyn, are reported as giving evidences of approaching maturity.

They are pronounced not American aloes, or century plants, but _Agave

Virginica_, a plant of the same family commonly found in sterile soil

from Virginia to Illinois and south, and blossoming much more

frequently. In Mexico the century plant is turned to practical account

and made a profitable investment to its owners. After the scape has

reached its full growth it is hewn down, and the sap, which fills the

hollow at its base, is ladled out and converted by fermentation into

"agave wine," or "pulque," the favorite drink of the Mexicans. This

pulque, or octli, has an acid resembling that of cider, and a very

disagreeable odor, but the taste is cooling and refreshing. A brandy

distilled from pulque is called "aquardiente," or "mexical." The

plant, by tapping, can be made to yield a quart of sap daily. The

fibers of the leaves when dried furnish a coarse thread known as Pita

flax, and when green are used in Mexico as fodder for cattle. Razor

strops or hones are also made from the leaves, which contain an

abundance of silica and give rise to a very sharp edge on a knife

applied with friction across the surface of the dried leaf.

* * * * *

CREOSOTE A SPECIFIC FOR ERYSIPELAS.

Time was when the advocate of a specific was laughed at by the

scientific world, but since it is known that so many forms of disease

are the direct result of some kind of germ life, it is no longer a

misnomer to call a medicine which will certainly and always destroy

the germ which produces so many forms of disease a specific.

In the light of this definition, founded upon the experience of forty

years' successful practice in treating this form of disease with

creosote, the writer is prepared to indorse the heading of this

article. Having used all the different remedies ordinarily prescribed,

they have long since been laid aside, and this one used in all forms

of the disease exclusively, and with uniform success.

In 1863 it was the writer's fortune to spend several weeks in a

military hospital in Memphis as a volunteer surgeon, under the

direction of Dr. Lord. In conversation with him, the use of this

article was mentioned, which appeared new to him, and a case was put

under treatment with it, with such prompt favorable results as to

elicit his hearty commendation, and, at his suggestion,

Surgeon-General Hammond was informed of it.

All injuries, of whatever kind, have been treated with dressings of

this remedy, and where this has been done from the first to last, in

no instance has there been an attack of erysipelas.

The usual manner of application was in solution of six to twenty drops

to the ounce of water, keeping the parts covered with cloths

constantly wet with it. In ulcers or wounds it may be used in the form

of a poultice, by stirring ground elm into the solution, the strength

to be regulated according to the virulence of the attack. Ordinarily,

ten drops to the ounce is strong enough for the cutaneous form of the

disease and in dressings for wounds or recent injuries. If the

inflammation threatens to spread rapidly, it should be increased to

twenty or more drops to the ounce of water.

The antiseptic properties of this remedy render it of additional

value, as it will certainly destroy the tendency to unhealthy

suppuration, and thus prevent septicæmia.

In the treatment of hundreds of cases of erysipelas but one fatal case

has occurred, and that one in an old and depraved system. In the less

violent attacks no other remedy was used, but where constitutional

treatment was indicated, the usual appropriate tonics were prescribed.

There is no question in my mind but that creosote is as much a

specific in erysipelas as quinine is in intermittent fever, and may be

used with as much confidence.--_St. Louis Med. Jour._

* * * * *

A NEW APPARATUS FOR THE STUDY OF CARDIAC DRUGS.

By WILLIAM GILMAN THOMPSON, M.D., New York.

The apparatus was devised by Mr. R.D. Gray (the inventor of the

ingenious "vest camera" and other photographic improvements) and by

myself. I described what was required and suggested various

modifications and improvements, but the mechanical details were worked

out exclusively by him. To test the rapidity of the camera, we

photographed a "horse-timer" clock, with a dial marking quarter

seconds, and succeeded in taking five distinct photographs in half a

second with _one_ lens, which has never before been accomplished

excepting by Professor Marey,[1] at the College de France, who has

taken successive views of flying birds, falling balls, etc., with one

lens at a very rapid rate. His camera was unknown to me until after

mine was constructed, so that as a success in photography alone the

work is interesting.

[Footnote 1: La Methode Graphique (Supplement), Paris, 1885.]

The camera consists of a circular brass box, 5½ inches in diameter and

1¼ inches deep, containing a circular vulcanite shutter with two

apertures, behind which is placed a circular dry plate. Both plate and

shutter are revolved in opposite directions to each other by a simple

arrangement of four cogged wheels moved by a single crank. The box is

perforated at one side by a circular opening, 1¾ inches in diameter,

from the margin of which projects at a right angle a long brass tube

(Fig. 1), which carries the lens. In Fig. 2 the lid of the box has

been removed, and the bottom of the box, with the wheels, springs, and

partially closed shutter, is presented. The lid is double--that is, it

is a flat box in itself. It contains nothing but the dry plate,

supported at its center upon a small brass disk, against which disk it

is firmly pressed by a pivot attached to a spring fastened in the lid.

The aperture in one side of this double lid, which corresponds with

that seen in the floor of the box, may be closed by a slide, so that

the lid containing the plate can be removed like an ordinary plate

holder and carried to a dark room, where it is opened and the plate is

changed. When the lid is replaced this slide is removed, and as the

shutter is made to revolve, the light falls upon whatever portion of

the dry plate happens to be opposite the opening.

By reference to Fig. 2, it will be seen that when the large wheel

which projects outside of the box is revolved by a crank, it turns the

small ratchet wheel, which bears an eccentric pawl. (The crank has

been removed in Fig. 2; it is seen in Fig. 1.) The central wheel has

only six cogs. The pawl is pressed into one of these cogs by a spring.

It pushes the central wheel around one-sixth of its circumference,

when it returns to be pressed into the next cog. While the pawl

returns, it necessarily leaves the central wheel at rest, and whatever

momentum this wheel carries is checked by a simple stop pressed by a

spring upon the opposite side. The central wheel carries a square

axle, which projects through a small hole in the center of the double

lid and fits into the brass disk before alluded to, causing the disk

to revolve with the axle. The disk is covered by rubber cloth; and as

the dry plate is pressed firmly against the rubber surface by the

spring in the lid, the plate adheres to the rubber and revolves with

the disk. Thus every complete revolution of the central wheel in the

floor of the box carries with it the dry plate, stops it, and moves it

on again six times. The velocity of revolution of the plate is only

limited by the rapidity with which one can turn the crank.

The shutter is revolved in the opposite direction by a wheel whose

cogs are seen fitting into those of the little wheel carrying the

eccentric pawl.

[Illustration: FIG. 1.--THE CAMERA MOUNTED.]

The two apertures in the shutter are so placed that at the instant of

exposure of the plate it is momentarily at rest, while the plate when

moving is covered by the shutters. This arrangement prevents vibration

of the plate and blurring of the image. The camera is mounted by two

lateral axles with screw clamps upon two iron stands, such as are in

common use in chemical laboratories. A brass rod attached to the tube

steadies it, and allows it to be screwed fast at any angle

corresponding to the angle at which the heart is placed. It is thus

easy to put a manometer tube in the femoral artery of an animal, bend

it up alongside of the exposed heart, and simultaneously photograph

the cardiac contraction and the degree of rise of the fluid in the

manometer(!). The tube is arranged like the draw tube of a microscope.

It is made long, so as to admit of taking small hearts at life-size.

The stand carries a support for the frog or other animal to be

experimented upon, and a bottle of physiological salt solution kept

warm by a spirit lamp beneath.

[Illustration: FIG. 2.--INTERIOR OF THE CAMERA.]

The whole apparatus is readily packed in a small space. I have already

taken a number of photographs of various hearts and intestines with

it, and the contraction of the heart of the frog produced by

_Strophanthus hispidus_, the new cardiac stimulant, is seen in Fig. 3,

taken by this new instrument. The apparatus has the great advantage

that six photographs of a single cardiac pulsation, or of any muscular

contraction, may be easily taken in less than one second, or, by

simply turning the crank slower, they may be taken at any desired rate

to keep pace with the rhythm of the heart. The second hand of a watch

may be placed in the field of view and simultaneously photographed

with the heart, so that there can be no question about the series of

photographs all belonging to one pulsation.

[Illustration: FIG. 3.--PHOTOGRAPHS OF THE HEART IN MOTION.

1, Normal diastole; 2, auricular systole; 3, ventricular systole. 1,

2, 3 were taken in a half second; 4, 5, 6, same as 1, 2, 3, after

injection of toxic dose of Strophanthus hispidus. 4, 5, 6 were taken

in a half second. The pulse rate was 74.]

I have already called attention[13] to the ease with which these

photographs are enlarged for lecture room demonstration, either on

paper or in a stereopticon, and the ease with which they may be

reproduced in print to illustrate the action of drugs.

[Footnote 13: _Medical Record_, loc. cit.; Recent Advances in Methods

of Studying the Heart, _Medical Press_, Buffalo, March 1, 1886, p.

234; Instantaneous Photographs of the Heart, Johns Hopkins University

Circulars, March, 1886, p. 60.]

* * * * *

A CATALOGUE containing brief notices of many important scientific

papers heretofore published in the SUPPLEMENT, may be had gratis at

this office.

* * * * *

THE

SCIENTIFIC AMERICAN SUPPLEMENT.

PUBLISHED WEEKLY.

Terms of Subscription, $5 a year.

Sent by mail, postage prepaid, to subscribers in any part of the

United States or Canada. Six dollars a year, sent, prepaid, to any

foreign country.

All the back numbers of THE SUPPLEMENT, from the commencement, January

1, 1876, can be had. Price, 10 cents each.

All the back volumes of THE SUPPLEMENT can likewise be supplied. Two

volumes are issued yearly. Price of each volume, $2.50 stitched in

paper, or $3.50 bound in stiff covers.

COMBINED RATES.--One copy of SCIENTIFIC AMERICAN and one copy of

SCIENTIFIC AMERICAN SUPPLEMENT, one year, postpaid, $7.00.

A liberal discount to booksellers, news agents, and canvassers.

MUNN & CO., PUBLISHERS,

361 BROADWAY, NEW YORK, N.Y.

* * * * *

PATENTS.

In connection with the SCIENTIFIC AMERICAN, Messrs. MUNN & Co. are

solicitors of American and Foreign Patents, have had 42 years'

experience, and now have the largest establishment in the world.

Patents are obtained on the best terms.

A special notice is made in the <b>Scientific American</b> of all

inventions patented through this Agency, with the name and residence

of the Patentee. By the immense circulation thus given, public

attention is directed to the merits of the new patent, and sales or

introduction often easily effected.

Any person who has made a new discovery or invention can ascertain,

free of charge, whether a patent can probably be obtained, by writing

to MUNN & Co.

We also send free our Hand Book about the Patent Laws, Patents

Caveats, Trade Marks, their costs, and how procured. Address

MUNN & CO., 361 BROADWAY, NEW YORK.

Branch Office, 622 and 624 F St., Washington, D.C.

Scientific American Supplement, No. 561, October 2, 1886 · 第 9 / 9 段