30 



d. Cerehratulus ma7'ginatus Renler and C. sp. 



e. Amphipoms^ several species. 

 f. Ptychodera sp. 



3. Preparations Illustrating Developmental Stages of 



THE Cranium and Clasping Organs in the Chim- 

 ^ROiD, Hydrolagus colUei. Material from the Puget 

 Sound expedition of 1896 of the Zoological Department 

 of Columbia University. Exhibited by R. W. Shearman. 



4. a. Developmental Stages of the Australian Lung- 



fish, Ceratodus forsteri^ collected near Gayndah, 

 Qiieensland. 



b. Larv.e of Eels — Congej'^ Congei'murcEiia^ Angzt- 

 illa — from Strait of Messina. Received through Pro- 

 fessor Lankester from Professor Grassi. Exhibited by 

 Dr. Bashford Dean. 



5. Effects of Light of Different Colors Upon Pro- 



toplasm. Exhibited by N. R. Harrington and E. 

 Leaming. 



6. Exhibition of Teaching Preparations by B. B. Griffin. 



Development stages of : 

 a. Petromyzon ; b. Shark ; c. Skate ; d. Lepidosteus ; e. 

 Accipenser; f. Amia ; g. Amiurus ; h, Necturus ; i. 

 Frog; j. Lizard. 



7. Grafting Experiments upon Moths. Compound pup^e 



and compound adult moths, illustrated by photographs 

 and specimens. Exhibited by H. E. Crampton, Jr. 



8. Slides Illustrating the Origin of Nuclei in Proto- 



zoa. Exhibited by G. N. Calkins. 



a. Monad ( Tetramitus) with distributed nucleus. 



b. Monad ( Chilo7no7tas') with intermediate type of nucleus. 



c. Euglena vii'idis^ with complete nucleus in early stage 

 of division. 



d. Euglena viridis^ with nucleus in anaphase of division. 



