444 
PROCEEDINGS OF THE ACADEMY OF 
[ 1888 . 
Contributors. Dr. Xavier Sudduth, 
“ Frank Zentmayer, 
“ Edwd. Bancroft. 
Honorary Member. Dr. J. Gibbons Hunt. 
The section lost the following by death and resignations. 
By death.—Paul P. Keller, Joseph Zentmayer, S. Fisher Corlies. 
By resignation.—Members, J. D. Sergeant, Dr. Carl Seiler, Charles 
F. Banes, John Lambert. 
Contributor, AYalter Banes. 
Communications -were made upon the following subjects.:— 
December 5, 1888. Orthochromatic plates in differentiating 
details of color in photographing microscopic objects, by Mr. AY. 
H. AValmsley. 
December 5, 1888. Some new results in removing embryos from 
the uterus, by Prof. John Ryder. 
December 5, 1888. LTpon the fungus Rhytisma acerina, by 
Dr. L. Brewer Hall. 
December 5, 1888. Upon the fungus Badhamia fasciculata, by 
Air. Harold AA^ingate. 
January 16,1888. Public lecture, by Rev. Dr. H. C. McCook upon 
spiders and spiderlings. 
February 3, 1888. Public lecture, by Prof. AY. P. AYilson upon 
plants that feed on insects. 
February 6, 1888. Presentation of a number of slides, by Dr. 
Isaac Norris Jr. 
February 6, 1888. A series of slides illustrating the anatomy of 
the mouse’s head, by Prof. Ryder. 
March 5, 1888. Lecture by Professors AYilson and Ryder assisted 
by Air. Holman with the projecting microscope, upon Celloidin 
mounts and the method of making sections of delicate tissues. 
April 2, 1888. Upon the sexual habits of the Scale insects by 
Dr. L. Brewer Hall. 
April 2, 1888. Molluscum contagiosum, by Dr. AI. B. Hartzell. 
April 2, 1888. The histology of the Skate with special reference 
to the formation and growth of the thymus gland and of peculiar 
sense organs, by Prof. Ryder. 
April 2, 1888. Upon some interesting forms of fungi, by Dr. J- 
B. Brinton. 
Alay 7, 1888. Upon Enterideum, by Air. Harold AYingate. 
