Report of the Progress of the Sciences in France. 429 
teeded but in a very trifling degree from the caloric extri- 
cated from the oxygen inspired. 
4, If animal heat proceeded from respiration, or from the 
combustion of the carbon in the act of respiration, the lungs 
ought te possess a greater degree of heat than the other parts 
of the system, as Brodie has asserted, which is not the fact. 
He thinks that animal heat is in a great measure under the in- 
fluence of the nervous system and of the brain. - 
In the muscular movements the nervous system is in a state 
of activity more or less considerable; this is the reason that 
heat is produced in the animal body. 
5. The fermentation of the various animal liquors contri- 
_ butes much to the heat of animals, for we know that every fer 
mentable substance contracts heat. Now all the animal liquors 
are in a perpetual state of fermentation. 
_ 6. There are continual combinations in the animal economy 
iehich give new products, such as the phosphoric, uric, sebic, 
acids, glutine, fibrine, &c. &c. Now all these combinations are 
uniformly accompanied with an extrication of caloric. 
7. The galvanic action is powerfully exerted among the va- 
rious heterogeneous particles of the bodies of animals which fer- 
ment. ‘This galvanism is very intense in the electric eel, &c. 
and contributes powerfully to animal heat. 
BOTANY. 
Picot la Peyrouse has given a complete history of the plants 
of the Pyrenees. Cassini has published an elegant work on the 
Synanthere, or Syngenesie of Linnzus, the Composita of Tour- 
nefort. 
Palisot de Beauvois, having ascertained that the methods for 
the study of the Graminea were imperfect, has proposed a new 
one, which he calls Agrostographia. Desvaux has published 
some additional observations on the Lycopodiacee, of which 
Jussieu and Mirbel have furnished us with an extract. 
Bonpland has published the second nurhber of the rare plants 
of Navarre and Malmaison. 
Redouté continues his work on the Liliacee, Mirbel has 
published the description of various new fruits, and also a Hi- 
story of Botany from its infancy among the Greeks to the pre- 
sent time. 
Decandolle has given an elementary treatise on botany, or an 
explanation of the principles of natural classification, and of the 
art of describing and studying vegetables. Tristan has pub- 
lished a fine work on the budding of plants. 
VEGETABLE PHYSIOLOGY. 
» Under this head M. Delametherie, after stating it to be his 
opinion 
