Εικόνες σελίδας
PDF
Ηλεκτρ. έκδοση
[merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

glish translation of La Marck's whole work. In geology generally, the English keep up at least an equality with the French philosophers, but in the particular department of the investigation and classification of fossil remains, and their reference to appropriate strata, they are certainly behind hand. The defence of the Mosaic account of the Creation, by the Rev. Mr. Townsend of Pewsey, has merit in this respect.

The voyage of discovery to Australasia, of which the account was drawn up chiefly by Peron, has added so many new facts to zoology, insects, fishes, and particularly in respecting land animals, reptiles, the tribe of moluscæ, to which M. Le Sueur on that voyage paid indefatigable attention, that we must wait for an opportunity of deliberately examining the second volume recently published and now daily expected here, before a satisfactory account can be given of this very interesting voyage. But one part of zoology the most interesting, that of our own species, has been enriched by Peron and Le Sueur with a more accurate account of the Boschesmen than has appeared before. Something of them we knew from Vaillant and Barrow, but we now know more from the descriptions of M. M. Peron and Le Sueur, and the accurate drawings of this last gentleman, who was designer to the expedition. What the unpublished travels in Africa of W. J. Burchell, Esq. will produce, cannot yet be known.

In the peculiarities of this species of the human race, the Boschesman has been confounded with the Hottentot; but the singularities of conformation ascribed to the latter, belong exclusively to the former.

The following description of the Houzewaana of Le Vaillant, and the Boschesman of Barrow, is compiled from the accounts of these writers, and of M. M. Peron, and Le Sueur, in a former volume of the Journal de Physique and in the Bulletin of the Societè Philomathique.

1. The Boschesmen, or people of the back woods, are only found in the country, north, north west, and north east of the Cape of Good Hope, in the great Karoo, the mountains of Shewberg, and the country of Candebo. They border on the Caffres or Hottentots, with whom they are generally at war. They occupy a large tract of country.

2. They have no cities or houses; or any well characterized marks of civilization. They live chiefly in caves, and holes in the rocks; but they herd together in kraals or villages, and hunt in packs; their arms are bows and arrows, and sticks; they have no language intelligible to, or acquirable by the European; they have no marks of religion or worship; they learn with difficulty when brought to the Cape, a few Dutch words; they have no sense of modesty, either as to their persons, or the gratification of their desires.

3. They are the most homely of the human species: their eyes are small, piercing, always in motion; their stature seldom exceeding fifty-two inches English; they have the leaden colour of the Malay, and are not so black as the Hottentots; their face appears to be all forehead, and has many characters of the monkey; they have properly no nose, their nostrils are broad but very slightly prominent above the face; their lips are very thick and projecting; their eyebrows are somewhat like the Chinese, and

join, being somewhat rounded and not terminating in an angle like the European; they have hair curled, but so short as to appear at first view as if they were shaved; they are active, but not equal to the white man in strength, though hardy, and capable of bearing much fatigue.

4. Their women have not, as commonly supposed, a “ tablier" or flap that covers the pudenda, but a funicular appendage attached by a strait peduncle, to the upper part of the labia pudendi, which increases in thickness as it descends, and in adults is about four inches and a half or five inches in length, covering the lower part of the labia: it is of a reddish colour, in substance like the skin of the dartos, it is somewhat like a large dependent penis, soft, extensible, wrinkled, devoid of hair, slit or bifid from about the mid length to its extremity, so that the two

halves can be thrown over the labia pudendi on each side, when the female lies down. This organ is not a clitoris, it is not a disease, for it is universal among them, nor is it the effect of mechanical handling or extension; young girls have it of size proportioned to their age. It covers the urinary passage, clitoris, and part of the entrance of the vagina. The females have their thighs rather thin, but their but tocks very prominent, large, and fat, and an adipose protuberance projects from behind on each but. tock, so large and prominent that the feet of their infants rest upon it. These characters are lessened by commixture with men of other species, as with the Hottentots. Their breasts in the adult, swell out from the sternum, are then drawn in toward the middle, and swell out again, so as to be of the form of a calibash or gourd. On

[blocks in formation]

M. de Barbancois in remarking upon La Marck's division of animals into the two grand classes of Vertebral, and Invertebral, and then into the following subdivisions, viz. 1. Mammiferous. 2. Birds. 3. Reptiles. 4. Fishes. 5. Moluscas. 6. Cirrhipedes. 7. Annelides. 8. Crustaceous. 9. Arachnoids, (without wings.) 10. Insects, (having wings.) 11. Worms. 12. Radiaires. 13. Polypi. 14. Animalcula Infusoria;-offers in lieu the following division of animals:

Tableau de la Classe proposée.

Divisions.

Degrés.

Hommes

Classes.

Mammifères

Oiseaux

sang chaud.

{

9me.

8me.

Reptiles écailleux

à sang froid.

{7me.

Reptiles visqueux Poissons

Céphalopodes

6 me.

[merged small][ocr errors]

à système nerv. visible.

Annelides

5 me.

[blocks in formation]
[merged small][ocr errors][merged small][merged small][ocr errors][merged small][merged small][merged small]

Sous classes.

intelligens.

bornés. terrestres. marins.

jamb. garn. de pl. jamb. dénu. de pl. avec pattes.

sans pattes. avec queue. sans queue.

osseux.

cartilagineux.

avec sac.

avec coquille. céphalés. acéphalés.

nus.

couverts

entomostracés.

malacostracés.

antennister

invertébrés.

This subject M. de Barbancois had before taken up in a memoir on the filiation of animals, from the polypus to the monkey, in the Jour. de Phys. for May preceding, in which he defends the very dubious opinion of La Marck, (Darwin's also,) that matter, by the properties naturally belonging to it, daily forms the lowest and commencing species of organic beings,

Insectes à métamorph.

Vers intérieurs

palpistes. broyeurs.

suceurs. intestinaux.

viscéraux. échinodermes. malacodermes.

libres. aglomérés. appendiculés. lisses.

| endowed only with the first and most necessary conditions of animality, as in the polypi and infusoria; without supposing that the laws of animation are distinct from, and opposed to, those which govern inorganic matter. But as there are no new facts in this paper, it demands no farther notice.

M. Cuvier's account of the zoological, anatomical, and physio

logical labours of the Royal Institute in France for 1815. (Thomps. Ann. June, 1816, p. 462.) gives notices of observations on the lynx, the leo cornuta, and the catoblas of the ancients. The first, Cuvier thinks was not the modern lynx, but the caracal; the two latter names belong to the antelope gnu, Linn. The five unicorns of the ancients, he refers to the rhinoceros. The ancient asp, is the coluber haje, described by Geoffroy in his work on Egypt. The dolphins of the ancients were of two kinds, one our present dolphin, delphinus delphis, Linn. the other belonged to the sharks. The ancient fables respecting the hyæna and the ichneumon, Cuvier accounts for, by their peculiarity of conformation; the rigidity of the cervical muscles of the hyena, often giving the appearance of continuous vertebræ.

Cuvier's analysis proceeds to offer us observations on the musette, or musaraigne, on the anatomy of the moluscæ, in particular of the anatifes, the balanes, and the shells approaching the patellæ, oscabria, haliotides, and ascidiæ.

M. M. Savigny, Des Marets, Le Sueur, and Lamoroux, have also pursued the subject of the pyrophoric sea animals (pyrosomata) lucernaria.

Lamoroux has formed a system of the flexible, coralligenous polypi, which he has divided into 10 families, including nearly 50 genera, and 560 species.

M. de Latreille has described certain crabs of the Mediterranean

sea.

M. de Savigny has also treated on the anatomy of the scolopendræ, and some other insects.

M. de Labillardiere has presented to the Class some observations on the habits and economy of bees, and the circumstances under which they put to death or spare the male bees.

He and M. de Latreille have also presented observations on the coleopterous drill-insect, the vrillete, or death-watch; already described by Allen and Durham, 20 Phil. Trans. 376. and 22 Phil. Trans. 832. This animal is the ptinus pulsator, Linn. Durham has also figured and described another animal that beats; 24 Phil. Trans. 1586.

PHYSIOLOGY AND MEDI-
CINE.

Dr. Wilson Philips, in a paper read at the Royal Society in January, 1816, has rendered it probable that the circulation of the blood and the action of the muscles are independent of the nervous influence, and that this influence only acted on the muscles like any other stimulus. But the case is very different with the secretions. Whenever the nervous influence

is interrupted the secretion is at

at end. Several rabbits had the M. Le Clerc de Laval, has ex-eighth pair of nerves divided, and amined the confervæ, and some in all of them the parsley, which microscopic animals. (Have not they ate after the operations, rethe confervæ been found to af- mained in the stomachs quite unford an instance of a conversion altered, and exactly resembled of animals into vegetables? Some parsley chopped small with a knife. German author on the subject, The stomach was also much diswhose name does not now occur tended, and a portion of the food to me, says so.) was contained in the oesophagus.

This was owing to the unsuccessful attempts which the animal made to vomit, which always follow the division of the eighth pair. The animal soon shows a violent dyspnœa, and seems to die at last of suffocation.

[ocr errors]

son has gone rather farther than his experiments will warrant, when he concludes that the nervous influence and galvanism are the same. It is clear that the section of the nerve interrupts the nervous influence. Mr. Wilson's experiments (supposing them correct) show us that galvanism puts an end to this interruption. But it may do this merely by serving as a conductor to the nervous influence.

Since the experiments of Galvani on animals, it has been a favourite opinion of many physiologists that the nervous influence is the same with galvanism. To put this to the test of experiment, a portion of the hair of a rabbit op- On Thursday, the 1st of Februaposite to the stomach was shaved, ry, Dr. Wilson Philips' paper was a shilling tied on it, the eighth continued: he considers it as provpair was divided, and the extremi-ed by his experiments that the ganties of the nerve coated with tin- glia communicate to the nerves foil. These were connected with a proceeding from them the general galvanic battery of 47 pairs of influence of the brain and spinal plates four inches square. The marrow. Nerves proceeding from trough was filled with a liquid them supply all the involuntary composed of one part muriatic muscles. But if this be the case, acid and seven parts water. This it will be asked, how comes the action was kept up for 26 hours. digestive power of the stomach to No dyspnoa took place, and after be destroyed by cutting the eighth death the food in the stomach was pair of nerves, seeing that the found as much digested as in the stomach is supplied with nerves stomach of a healthy rabbit which from ganglia? The eighth pair had eaten food at the same time. coming from the largest portion of The smell of the parsley was de- the nervous matter possesses the stroyed, and the smell existed greatest influence; but the digeswhich is peculiar to the stomach tive power of the stomach is of a rabbit during digestion. This weakened likewise by the interexperiment was several times re- ruption of the nerves proceeding peated with the same result. So from ganglia. This he proved by that it appears that the galvanic destroying part of the lower por energy is capable of supplying the tion of the spinal marrow of differplace of the nervous influence; and ent rabbits. In every case the dithat while under it, the stomach gestive power of the stomach was digests food as usual. impaired or destroyed; the urinary bladder and rectum lost the power of discharging their contents, and paralysis of the lower extremities ensued, and a great degree of cold took place. The heat of one rabbit before death sunk as low as 75°. Though the power of the stomach as an organ of digestion is destroyed by cutting the eighth pair of nerves, still its muscular power 3 I

Mr. Wilson likewise made a number of experiments to show that heat is a secretion from the blood produced by means of the nervous energy. When new drawn blood is subjected to the action of the galvanic battery, it continues several degrees hotter than blood not subjected to the same process. It should appear, that Mr. WilVOL. I.

« ΠροηγούμενηΣυνέχεια »