r797:| National Inftitute Natural Fiiftory...Voyages Es Travels. 20 
neceflarily induce new principles of phy- 
fiology, fertile in confequences. 
Huzarp aud GILBERT prefented 
memoirs on-the horfe, with regard to its 
medical treatment and contervation. In 
thefe, the nature and cauies of one of 
the maladies which proves the moft fatal 
to this animal, called the vertigo, are 
clearly pointed out. ; 
Huzarp alfo prefented a memoir, 
the publication of vhich has been ordered 
by government, which treats generally 
of the health of fuch animals as are be- 
come necefiary to man, and defcribes, at 
length, the general and particular charac- 
ters, the exterior and interior fymptoms, 
the caufes, the progre!s, and the treat- 
ment of an inflammatory diforder, which 
has lately attacked the horned cattle 
through a number of diftriéts, im the 
depatrments of the Haft. From the 
confideration of this difeafe, the author 
proceeds to confider epizootic maladies 
in general, gives a detailed view of the 
dangerous methods hitherto practiled for 
healing them, and {pecihies the fimple 
remedies which ought to be fubftituted 
in their place. 
Cuvizr prefented an elementary 
treatife on the natural hiftory of ani- 
mals, which exhibits, in a new, and me- 
thodical order, the moft prominent 
principles which have hitherto terved 
asa ground-work of the hittory of fen- 
fitive beings. So numerous, however, 
are the mutual analogies in animals, that 
a clofer inveitigation of this fertile {ub- 
ject will probably lead to the difcovery 
of ‘new truths. This work will be 
equally ufeful to.the profeffors, and to 
the ftudents of zoology, and claims the 
attention of all who are anxious for the 
advancement of public inftruction. 
DESESSARTS announced the plan he 
has adopted in purfuing his, enquiries 
relative to the complication of the fimall 
pox with other diforders, and pointed 
out the effeéts which the ufe of mercury 
will be attended with, in the treatment 
of that malady. . 
Exclufive of the above memoirs, 
which were recited at the public fitting, 
the clafs of phyfical fciences has nomi- 
nated two committees; the firit, for the 
purpofe of endeavouring to find out a 
remedy for a certain difeafe, which at- 
tacks and deftroys elms and other large © 
trees; and the fecond, for the purpofe 
of collecting and combining the nume- 
rous\ experiments made in Italy, Ger- 
many, and England, on the action of 
gaffes, and the influence and application 
4 
of metals, with refpeét to irritability 
and fenfibility. A number of curious 
faéts had heen before prefented to the 
clafs, by GuyTon, on this fubjeé. 
It is unneceflary to notice a number of 
reports delivered to the clafs, which be- 
ing called for by public authority, and 
treating of queftions interefting to the 
fciences, or ufeful in the arts, took up 
much time and attention in the recitals ; 
as no new truths were thereby difclofed, 
although feveral impertant principles, 
already acknowledged, received farther 
confirmation. 
We cannot, however, difpenfe with 
mentioning the different voyages and 
journies projected and undertaken, un- 
der the aufpices of government, by the 
members of the clafs, in the courfe of 
the three laft months. 
Dotomisev, GILBERT, and Par- 
MENTIER, have been {cattering through- 
out a part of France, fertile feeds of 
knowledge in Natural Hiftory, Agricul- 
ture, and the Veterinary Art. 
BERTHOLLET, MonGe,and THovs — 
IN, have been contemplating, in \Iraly, 
the mayettic phenomena of Nature, the 
fuperb and eloquent Ruins of Art, the ' 
exquifite Manufactures of ingenious In- 
duftry, and the varied modes of irrigat- 
ing and fertilizing lands. MicuHapp, 
an affociate of the clafs, long fince illuf- 
trious by his fcientific voyages to Perfia, 
has lately enriched his country (in {pite 
of the horrors of a fatal thipwreck, in 
the midft of the Atlantic) with the trea- 
fures of Natural Hiltory which he has 
been collecting in North America 5 hav- 
ing traverfed that immenfe continent, 
from the frozen banks of Hudfon’s bay, 
to the delicious meadews watered by the 
river Miflifippi. BRoussonNET has 
laid before the Inftitute, a {cheme of the 
benefits which will accrue to the arts and 
{cicnces, from a voyage to Morocco; he 
has alfo teftified his own ardent defire to 
revifit thofe coafis of Barbary which 
have been already explored by our col- 
league Desfontaines; to penetrate through 
Mauritania and Numidia, and plunge 
himfelf into the vaft interior of Africa ; 
and thence, in fpite of the burning de- 
ferts, which have hirherto prevented the 
curious refearches of travellers, to fetch 
away the {poils of natural {cience, more 
precious than the treafures contained in 
its bofom. BruGuIERES has been fre- 
quently enumerating the produdtions of 
nature, in Turkey, Egypt, and other 
Oriental countries. And, finally, 
DesFonTAINgS read a memoir of 
MART N 





