490 PROCEEDINGS OF THE ACADEMY OF [1881. 



number of specimens had to be packed away for want of room, 

 which, it is hoped, will soon be provided for their display. 



Joseph Leidy, M. D., 



Chairman of Curators. 



REPORT OF THE BIOLOGICAL AND MICROSCOPICAL 



SECTION. 



Fifteen stated meetings were held during the j^ear. 



The following new members and associates were elected : 



Members.— Kohevt S. Davis, E. P. Borden, J. E. Mitchell, Dr. 

 Crozier Griffiths, Dr. George A. Rex, Edward P. Starr, D. S. 

 Newhall. 



Associates.— \N . T. Seal, Dr. J. R. McClurg, J. H. Fenton. 



The death of but one member was noticed upon the minutes of 

 the section, that of Thomas W. Starr. 



Besides the usual material presented at the meetings, the 

 following special subjects were of more than ordinary interest: — 



Dec. 6, 1880. — The anatomy of the Sponges, by Mr. Ryder. 



Dec. 20,1880. — An exhibition with a new Projecting Lantern, 

 by Queen & Co. 



Jan. 3, 1881. — Lecture upon Living Units and the Growth of 

 Vegetable and Animal Matter, from the Original Cells or 

 Bioplasts, by Dr. J. G. Hunt. 



Jan. It, 1881. — Lecture upon Mosses, by Dr. Hunt. 



Feb. T, 1881. — Lecture upon the subject, " Some Problems 

 Within and Some that are Beyond Microscopical Observation," by 

 Dr. Hunt. 



Feb. 21, 1881. — Extended remarks upon the Anatomy of the 

 Mosses and the best methods of Mounting, by Mr. Jacob Binder. 



March 1,1881. — The Microscopical Mechanism of some parts 

 of the Digestive Organs, by Dr. Hunt. 



March 21, 1881. — Extended remarks by Mr. George Binder 

 upon the Fungi and the best method of mounting them. 



March 21, 1881. — Observations by Mr. J. 0. Schimmell upon 

 the common Red Spider or Mite. 



March 21, 1881. — A new method of bleaching vegetable tissues, 

 by Mr, Jacob Binder. 



April 4,1881. — Lecture by Dr. Hunt upon the Significance of 

 some Customs in Living Things. 



