INDEX 
TO THE 
PHILOSOPHICAL TRANSACTIONS, 
FOR THE YEAR 1809, 
A page 
aIir, atmospheric , experiments on its respiration, - 4 1 3 
Albumen , observations on, and some other animal fluids, with 
remarks on their analysis, - - - - 373 
observations on some animal fluids- containing it, 580 
Alburnum of trees , its functions, - 17 3 
Allen, Wi lliam. Esq. His experiments, made in conjunc- 
tion with William H. Pepys, Esq. on respiration, 4 04 
Am ..onia, an account of its analysis, by combustion with oxy- 
gen and other gases, - - - - 430 
— experiments to ascertain if water is formed during 
its electrization, - 432 
of its expansion by electrization, - - 434 
of tLe proportions of hydrogen and nitrogen in it, 435 
further inquiries on the action of potassium on it ; 
and on its analysis, - 450 
Amnios, liquor of the, on its composition, - - 333 
Apparatus for dividing instruments described, - 1 1 6 
Arseniat of lead, native, description and analysis of it, 195 
Arteries , functions of, - - 1 
Azote , experiments to ascertain if it is evolved when oxygen 
is respired, - - - - 4 1 3 
B 
Basis, boracic, experiments -on, - - 7 8 
Battery , Voltaic, Mr. Children’s, experiments on the best 
form of its construction, - - - - 33 
Beam compass , its application to the division of instruments, 221 
Bile, on its composition, - - - 382 
