82 journal' of the [July, 



4. Asparagine, shown with polarized light : by William 

 Krafft. 



5. Pond Life, consisting of Hydras, etc.: by G. Duruv. 



6. Collection of Designs : by G. Dupuy. 



Alcove R. 



1. Spider's Foot, illustrated by an accompanying photograph: 

 by P. Lyons. 



2. Specimens to be used for Microscopic Mounting (animal 

 and mineral) : by P. Lyons. 



3. Sectioned Specimens ; after having been treated and sec- 

 tioned with microtome ; and minerals ground : by E. J. Rie- 



DERER. 



4. Specimens under Microscope, polarized light, and also top- 

 light for mineral and naked-eye drawing : by E. J. Riederer. 



5. Drawings of Microscopic Objects by the use of Zeiss' Camera 

 Lucida : by G. W. Kosmak. 



6. Camera illustrating Process of Photographing Microscopic 

 Objects with Use of the Microscope : by G. W. Kosmak. 



7. Thyroid Gland, illustrated by charts and drawings : by W. 

 W. Boyd, Jr. 



8. Human Lung, sectioned with Microtome : by E. Gold- 



BACHER. 



Alcove S. 



The Frog and the Fern. Two types of animal and plant life, to 

 illustrate the similarities and differences between these two great 

 divisions or kingdoms of animated nature. The gross and minute 

 structure of each will be examined and explained by charts, mi- 

 croscopic preparations and dissections, with special attention to 

 nutritive and respiratory processes, and the general development 

 of both types : by George William Kosmak. 



Meeting of April 2oth, 1894. 



The President, Mr. Charles S. Shultz, in the chair. 

 Twenty persons present. 



Mrs. Virginia B. Gibbs was elected a Resident Member of the 

 Society. 



