INDEX TO TRANSACTIONS, 
VOLUME III. 
A. 
Address of President of Microscopical 
Society, 37. 
C. 
Carpenter, W. B., F.R.S., F.G.S., on 
the development of the embryo of 
Purpura lapillus, \7. 
, , Address at Annual Meeting 
of Microscopical Society, 37. 
Chemical and visual foci of object- 
glasses, by F. H. Wenham, 1. 
Coincidence of the chemical and 
visual foci of the object-glasses, by 
F. H. Wenham, 1. 
Cosmarium margaritiferum, on, by 
Mrs. Herbert Thomas, 33. 
D. 
Development of the embryo of Pur- 
pura lapillus, by W. B. Carpenter, 
M.D., F.R.S., F.G.S., 17. 
Diatoraaceous forms, remarkable 
group of, by W. Gregory, M.D., 
F.R.S.E., 10. 
Discovery of parasitic borings in 
fossil fish-scales, by C. B. Rose, 
F.G.S., 7. 
E. 
Embryo of Purpura lapillus, develop- 
ment of, by W. B. Carpenter, M.D., 
F.R.S., F.G.S., 17. 
F. 
Farrants, Mr., on Peters' machine, .5.5. 
Furze, Mr., on polarised light, 63. 
G. 
Gregory, W., M.D., F.R.S.E., on a 
remarkable group of diatomaceous 
forms, with remarks on shape of 
outline as a specific character in the 
Diatomacece, 10, 
I 
Illumination of objects, 63. 
L. 
Light, Polarised, illumination of ob- 
jects by, Mr. Furze, on, 63. 
M. 
Machine for microscopic writing, 55. 
Microscopic objects, photographs of, 
1. 
Microscopical Society, address of pre- 
sident of, 37 ; annual report of 
Transactions of, 65. 
P. 
Parasitic borings in fossil fish-scales, 
discovery of, by C. B. Rose, F.G.S., 
Peters, Mr., machine for microscopic 
writing, Mr. Farrants on, 55. 
Photographs of microscopic objects, 
by F. H. Wenham, 1. 
E. 
Remarkable group of diatomaceous 
forms, by W. Gregory, M.D., 
F.R.S.E., 10. 
Remarks on shape of outline as a 
specific character of Diatomacea', 
by W. Gregory, M.D., F.R.S.E.. 
10. 
Rose, C. B., F.G.S., &c., on the dis- 
covery of parasitic borings in fossil 
fish-scales, 7. 
T. 
Thomas, Mrs. Herbert, on Cosmarium 
margaritiferum, 33. 
W,. 
Wenham, F. H-, on obtaining photo- 
graphic objects, and the coincidence 
of the chemical and visual foci of 
the object-glass, 1. 
