INDEX. 
page 
Home, Sir Everard, Bart. Croonian Lecture. On the 
anatomical structure of the eye ; illustrated by micro- 
scopical drawings executed by F. Bauer, Esq. - 76 
on the difference in the ap- 
pearance of the teeth and the shape of the skull in 
different species of seals, - 239 
— — observations on the changes 
the egg undergoes during incubation in the common 
fowl, illustrated by microscopical drawings, - 339 
on the placenta, - 401 
Howard, Luke, Esq. on the late extraordinary depres- 
sion of the barometer, - - - 113 
Hycena, description of three known species of this animal, 
all of them smaller and different from the fossil one, - 187 
the strength of this animal’s jaw noticed, - 189 
I 
Johnson, James Rawlins, M. D. Observations on the 
genus Planaria, - 
Iron, on its anomalous magnetic action when between the 
white and blood-red heat, - 
heated, experiments on the anomalous attraction 
which takes place in it, while the metal retains the 
bright red and red heat, - 
■ ' ■ a table showing its effect on the compass 
needle at different degrees of heat, 
and Steel, on the developement of magnetical proper- 
ties in them by percussion, - 
Ivory, James, M. A. On the expansion in a series of the 
attraction of a spheroid, - - 
K 
Kirkdale, in Yorkshire, account of an assemblage of fossil 
teeth and bones discovered in a cave there, in the year 
1821, ------ 171 
Knox, Right IJon. George. Experiments and observa- 
tions on the Newry pitch-stone, and its products, and 
on the formation of pumice, - - - 313 
L 
Longitudes, of the difference of longitudes found by chro- 
nometer and by correspondent eclipses of the satellites 
of Jupiter, - - - - 431 
437 
117 
120 
124 
241 
99 
