INDEX 
TO THE 
PHILOSOPHICAL TRANSACTIONS 
FOR THE YEAR 1822. 
A page 
Aeriform matter , on the state of it in cavities found in 
certain crystals, - - 367 
Ammonia , contained in sea-water, - - 454 
Animal and vegetable substances , on the ultimate analysis of 
them, - - 457 
Atmosphere , on the finite extent of it, 89 
B 
Bakerian Lecture , An account of experiments to deter- 
mine the amount of the dip of the magnetic needle in 
London in August 1821,|with remarks on the instruments 
which are usually employed in such determinations, - 1 
Bailey e, near Wirksworth in Derbyshire, account of some 
bones and molar teeth of the elephant found in a cavity 
of mountain lime-stone there, in the year 1663, - 213 
Barlow, Peter, Esq. On the anomalous magnetic action 
of hot iron between the white and blood-red heat, - 117 
Barometer, on the late extraordinary depression of it, 113 
Bell, Charles, Esq. Of the nerves which associate the 
muscles of the chest, in the actions of breathing, speak- 
ing, and expression : being a continuation of the Paper 
on the structure and functions of the nerves, - 284 
Birds , remarkable mechanism of their spine and spinal 
canal, - - 276 
