1889.] NEW-YORK MICROSCOPICAL SOCIETY. 89 



11. Eggs OF Snail : by Thomas B. Briggs. 



12. Cyclops : by F. W. Leggett. 



13. AMrEP,A : by The Society. 



14. Bacteria : by The Society. 



15. Rotifer: by George F. Kunz. 



16. Coryne mirarilis : by William E. Damon. 



17. Circulation of Blood : in Frog : by John L. Wall. 



18. in Tadpole : by M. M. Le 



Brun. 

 ig. in Gold Fish : by The 



Society. 



Meeting of April 5Th, 1889. 



The President, Mr. Charles F. Cox, in the chair. 



Twenty-one persons present. 



Mr. George S. Davis, and the Rev. George E. F. Hass were 

 elected Resident Members of the Society. 



The President addressed the Society on " Reproduction by 

 fission amongst the Ciliata," and illustrated his remarks by 

 black-board sketches and living objects. 



objects exhibited. 



1. Stephanoceros, under binocular microscope, and with para- 

 boloid illumination : by Charles F. Cox. 



2. Daphnia pulex : by William G. De Witt. 



3. Actinospierinum Eichornii : by William G. De Witt. 



4. Applanatic Eye-pieces, made of the " new glass " by Powell 

 and Leland : by William G. De Witt. 



5. False gills of pupa of Agrion : by L. Riederer. 



6. Bacteria, suddenly appearing in a glycerine mount, which 

 mount was prepared one year ago : by F. W. Leggett. 



7. Diatoms, 28 2 forms, from the Bay of Naples : by E. A. 



SCHULTZE. 



8. Diatoms, Type-slide of Baltjickii varua : by E. A 



SCHULTZE. 



9. Diatoms, Campylodiscus hibcrnicus : by E. A. Schultze. 

 Mr. Schultze remarked concerning his exhibit, No. 7, that it 



contained a fine collection of 18 forms of Surirella, and 3 of 



