INDEX 
TO THE 
PHILOSOPHICAL TRANSACTIONS 
FOR THE YEAR 1823. 
A page 
Acid, carbonic, on its reduction to the liquid state, 193 
muriatic, obtained in a liquid state, - - 198 
sulphurous, on its reduction to the liquid state, - 189 
Air, observations on air found in the pleura, in a case of 
pneumato-thorax, - - - - 496 
experiments on the absorption of different kinds of 
air introduced into the pleura, - - 496 
Ammonia, liquid, in what manner obtained, - - 196 
Arbury Hill, on its latitude, - - - 73 
Astronomical refractions, a dissertation on the, - - 409 
B 
Barlow, Peter, Esq. observations and experiments on 
the daily variation of the horizontal and dipping needles 
under a reduced directive power, - - 526 
Barnacle, on its double organs of generation, - - 140 
Bauer, Francis, Esq. The Croonian Lecture. Micro- 
scopical observations on the suspension of the muscular 
motions of the vibrio tritici, - ] 
Bell, Charles, Esq. on the motions of the eye, in illus- 
tration of the uses of the muscles and nerves of the 
orbit, - - - - 166 
second part of his paper, on the 
nerves of the orbit, - - - 289 
