iv CONTENT- 



No. 5- MAY. 1016. 



LlLLIE, \\.\i I'll S. The Theory of Anifsthesia 311 



GLASER, R. \\".. AND CHOI>MAN, J. \\". Th<- Xnture of the Poly- 

 hedral liodirs round in Inserts . . 367 



CHILD, C. M. A\i<il Susccptihility Gradients in the Early De- 



relopment of the Sea I 'rehin 391 



No. 6. JUNE, 1916. 



I-'.i'^liteenth Annual Report of the Marine Biological Laboratory... 407 

 M. \CKLIN, C. C. A mitosis in Cells (iroicin^ in Vitro 445 



