Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLII. No. 19. — Feukuaky, 1907. 



CONTRIBUTIONS FROM THE BERMUDA BIOLOGICAL STATION 



FOR RESEARCH, No. 10; AND FROM THE LABORATORY 



OF HISTOLOGY AND EMBRYOLOGY, WESTERN 



EESERVE UNIVERSITY. 



THE SPERMATOGENESIS OF THE MYRIAPODS 



Y. — ON THE SPERMATOCYTES OF LITIIODIUS. 



By Maulsby W. Blackman. 



WiTu Two Plates. 



