6 Transactions. 



Potato starch. Opaque. 

 Spicules of Gorgonia. 



" Plexor a plexurosa. 



Spicules of Gorgonia, various, opaque. 

 Polycystina from Barbadoes, " 



" " " " calcined. 



" " " " arranged. 



J. D. Hyatt. 



Section of Precious serpentine. Polariscope object. 

 Chas. S. Shultz. 



Bott's eggs on Horse-hair, with larvae. 

 J. D. Hyatt. 



Echinus spine. Section. 



F. H. Engels. 



Fossil Diatoms. Virginia, Nev. 

 Transverse section of Yerba Santa. 



" " Mountain mahogany. 



" " Sage bush. 



G. I. Whitehead. 

 Gizzard of Cricket. 



Dr. C. Seiler. 



Kidney of Cat. Stained and injected. 



Stomach of Cat. Injected. 



C. L. Peticolas. 



Fossil Diatoms. Richmond, Va. 



" " Nottingham, Md. 



" California. 



" " Petersburg, Va. 



Calvert Co., Md. 

 Diatoms. Hanover, Va. 



Holland Cliff, Md. 

 " Lake Superior. 



Drakesville, N. J. 

 " Toom Bridge. 



St. John's River, Jacksonville." Florida. 

 Dr. C. Seiler. 



Section of Lung. Tuberculosis. 

 Kidnev. Normal. 



