Imágenes de páginas
PDF
EPUB

difficulty prevailed on the natives to show him the different poison plants, which they carefully conceal, for the purpose of using them in war. Hence the many fabulous accounts that have been circulated respecting the fatal influence of the Upas; which in the language of the Javanese, signifies vegetable poison, and is applied only to the juice of the Bohan tree, and another plant with a twisted stem. The former is a large tree, which the writer considers as a new genus ; the latter, yielding an equally powerful poison, is of the woodbine family. The Upas, or juice, is extracted by an incision made in the bark with a knife, and being carefully collected, is preserved by the natives to be employed in their wars.' As to its diffusing noxious effluvia in the atmosphere, and destroying vegetation to a considerable distance around it, the absurdity of these stories is sufficiently exposed by the fact that the climbing specics rcquires the support of other plants to attain its usual growth. Dry Delille made several experiments with the upas on dogs and cats. An incision was made in the thigh of a dog, into which were dropped eight grains of the juice. The dog soon began to vomit, and continued vomiting at intervals till he became convulsed, and died in twenty minutes. Six grains were put into the thigh of another, which was seized with the same symptoins, and died in fifteen mi. nutes. A cat was treated in like manner, but the effects were more speedy and powerful; she expired in a few minutes. All these ani. mals died howling and in great agony. The author also made several experiments on the effects of this poison when applied internally. A grain and a half being introduced into the stomach of a dog, produced only a siight purging. To another were given four grains, which in about four hours produced the same effect, toge. ther with vomiting, and the dog died in the course of half a day. On examining the bodies of these animals after death, no very extraordinary appearances were discovered; the ventricles of the heart were full of blood, and some slight traces of inflammation appeared-in the stomach ; but the derangement was not so great as might have been expected from such a violent and sudden death, Froin this circumstance the author concluded that the absorbents had transmitted the poison to the nerves of the stomach, and that this peculiar species uf vegetable poison acts exclusively on the nerves,

The MEDICAL SOCIETY of LONDON have in the press a von lume of Memoirs, containing several valuable Communications in Medical and Surgical Science from eminent resident and corresponding members of the Society. The title of the volume will be,

. Transactions of the Medical Society of London, Vol. I. Part I." and it will be accompanied by engravings. Part II. will appear in, & few months afterwards, the Society having come to the determia nation of giving publicity to their Transactions more frequently than heretofore.

A new edition, being the fourth, of Dr. Trotter's Essay, Medical, Philosophical and Chemical, on Drunkenness, and its Efects on the Human Body, with róany additions, is just pube Lisbed,

April

Fair

Meteorological Diary, kept at Clapton, Hackney, from March 27

to April 24, 1810, by Thomas Foster, Esq.
Day Therm. Barometer. ,. Wind.'

Weather.
Max.Min. Max. Min.
March 275 10 41° 129 80129 65 s. s. E. Clouds & rain .

28|52 35 29 9419 89 w. Sun & showers
29155 34 129 99 29 951 w. Clear & clouds.
30 54 41 129 96/29 80 8. w. Fair day
3151 39 129 80/29 49 s. Fair-rain
151 41 19 72129 55 S. E. Fair
2 18 42 129 80129 67 E. Small rain-fair in
357

57 40 29 67 29 41 S, W. Small rain
449 33 129, 77129 45 n.-S. Showers
551 43 129 6729 49, s. w. Clear-cloudy
6+2 41 29 3429 331 8. Sun & showers
752 38 129 5129 40 s. Sun and showers
8154 42 29 52 29 50 s. w. Fair, a.m.-rain, p.m.
951 42 29 5629 48 S. E. Rainy
10 45 33 29 70/29 66. n. Rainy
u1/43 31 129 92/29 72! N. E. Showers
19 10 29 29 9529 95 N. Fair
1343 "32 29 95 29 92 N.. Cloudy-some snow :
14 49 37 29 8629 84 r. w.

37 29 7729 431 S, w.. Sun and clouds
16151 37 129 69/29 50 s. E. Clear, a.m.-small rain .
17 54 41 29 69 29 67 s. w. Sun and showers
1859 42.129 80129 65 : $. Fair
19/60 37 29 9829 801. S. Fair
2061 43 130 2030 151 8. E. Fair
2163 42 30 20 30 201 w

Fair
22|63 42 30 20 30 20 W. Fair
2366 41 30 26 30 20 w. Fair
2464 38 30 26|30 211 4. E. Fair
BAROMETER. . !

THERMOMETER,
Highest, April 24 30.26 Highest, April 23
Lowest, ditto 6 29.33 Lowest, ditto 12 : 29
Mean... 29 29.791 M ean • • o - 477

OBSERVATIONS.
March 30. Cirro-Cumuli observed in the sky in the morning. ..
April 6. The maximum of the Thermometer happened at 11 o'clock, p.m.
8. Salices, Vitellina, Fragilis, Rubra, Viminalis, Velutina, Russeliana, and

others in flower 14. The modification of cloud, called-Citro-Stratus, observable in sky. . 15. Cirro-Cumilli observed 16. Cirri in short tufts pointing to the South East, succeeded by rain, 17. Cirro-Strati in the sky.,

18. Cirro-Cumulus prevails, * 19. Very hazy moon. · 20. The wryneck Jynx Torquilla first heard. I observed the swallor, Hirun

do Rustica, as well as the martin, Hirundo Urbiça Aying about in the

neighbourhood of West Ham, · 21. Swallows first seen at Clapton,

22, Cuckoo first heard. .83 Cirro-Strati prevail,

24. Cirro-Cuinuli observable. :) By a Hygrometer of a peculiar construction which I make use of ( see an account " it in Phil. Mag. for November 1801,) it appears that the air has been extremely

ever since March 30th.,

M. SHUTES SCARIFICATOR, p. 277.

[merged small][graphic][merged small][merged small]
[graphic]
« AnteriorContinuar »