CONTENTS. 
I. The Croonian Lecture. A farther investigation of the com- 
ponent parts of the Blood. By Sir Everard Home, Bart. 
V. P. R. S. p. i 
II. The Bakerian Lecture. On the composition and analysis of the 
inflammable gaseous compounds resulting from the destructive 
distillation of coal and oil , with some remarks on their relative 
heating and illuminating powers. By William Thomas 
Brande, Esq. Sec. R. S. Prof. Chem. R. I. p.ii 
III. On the Elasticity of the Lungs. By James Carson, M. D. 
Communicated by Thomas Young, M. D. For. Sec. R. S. 
p. 2 9 
IV. On the action of crystallized bodies on homogeneous light, 
and on the causes of the deviation from Newton’s scale in the 
tints which many of them develope on exposure to a polarised 
ray. By J. F. W. Herschel, Esq. F. R. S. Loud, and Edin. 
P‘ 45 
V. A case of the human fcetus found in the ovarium , of the 
size it usually acquires at the end of the fourth month. By 
A. B. Granville, M. D. F. R. S. In a letter addressed to 
Sir Everard Home, Bart., V. P. R. S. p. 101 
VI. On some combinations of Platinum. By Edmund Davy, 
Esq. Professor of Chemistry , and Secretary to the Cork Institu- 
tion. Communicated by F. Babington, M. D. F. R. S. 
p. 108 
