4-i4 PROCEEDINGS OF THE ACADEMY OF [1888. 



• 



Contributors. Dr. Xavier Suddutli, 

 " 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. 



Bv resiofnation. — Members, J. D. Sergeant, Dr. Carl Seiler, Charles 

 T. Banes, John Lambert. 



Contributor, AV alter Banes. 



Communications were made upon the following subjects : — 



December 5, 1888. Orthochromatic plates in differentiating 

 •details of color in photographing microscopic objects, by Mr. W. 

 H. Walmsley. 



December 5, 1888. Some new results in removing embryos from 

 the uterus, by Prof. John Ryder. 



December 5, 1888. Upon the fungus Rhytisma acerina, by 

 Dr. L. Brewer Hall. 



December 5, 1888. Upon the fungus Badhamia fasciculata, by 

 IVIr. Harold Wingate. 



January 16, 1888. Public lecture, by Rev. Dr. H. C. McCook upon 

 spiders and spiderlings. 



February 3, 1888. Public lecture, by Prof. W. P. Wilson upon 

 plants that feed on insects. 



Februarv 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 Wilson and Ryder assisted 

 by Mr. 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. ^lolluscum contagiosum, by Dr. M. 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. Briutoii. 



May 7, 1888. Upon Enterideum, by ]Mr. Harold Wingate. 



