INDEX. 
page 
Gas, fluoboracic acid, quantity of it condensed by water greater, 
than of any other known gas, - 367 
— — •■■■■■ absorbed by sulphuric acid, peculiarities 
of this compound, - 366, 367 
on its combinations with ammoniacal gas, 368 
— their properties, 
peculiarities, and composition, - 369 
— hydro-phosphoric , the name given to a peculiar gaseous 
compound of hydrogene and phosphorus, - - 4 1 1 
— its properties and composition, 408,499,411 
— — muriatic acid , additional experiments on, - - 2 42 
— — — the effects produced by its electrization 
with oxygene gas, - - - - £45 
oxymuriatic acid, additional experiments on, - 2 42 
— - — silicated fluoric, an advantageous mode of procuring it, 353 
— specific gravity of, - - 354 
composition of, - - 355 
— — quantity of it decomposed by water, 357 
Gaseous compound , on a peculiar one, obtained from hydro- 
phosphorous acid, - - 40S 
Gay Lussac and Thinard, M M. Their researches on 
fluoric acid, kc. referred to, - 352, 353, 362, 365, kc. 
Glands , solvent , on the different structures and situations of 
those in the digestive organs of birds, according to the 
nature of their food and particular modes oflife, - 394 
Goose, (Anas Anser), on its solvent glands, - 398 
— — Soland , (Pelecanus Bassanus), on its solvent glands, 395 
H 
Hatchett, Charles, Esq,. His chemical researches on the 
varieties of coagulated albumen, referred to, - 100 
Heat , none generated in an animal in which the brain has 
ceased to perform its functions, - - 388 
— — - animal , facts proving that it is much influenced by the 
nervous system, - 37 S, 379, 390 
Hemisphere, of the penetration of one, by an indefinite num- 
ber of equal and similar cylinders, - - 310 
Henry, Wm. M. D. His additional experiments on the 
muriatic and oxy muriatic acids, - - 242 
Heron , (Ardea Cinerea), on its solvent glands, - 395 
Hersghell, Wm. LL. D. His observations of a comet, 
with remarks on the construction of its different parts, 
115 
