Studies in Spermatogenesis (Part 2 of 2)

Part 2 — SEX DETERMINATION.

Reading edition

BY N. M. STEVENS

Illustration from Studies in Spermatogenesis (Part 2 of 2)

WASHINGTON, D. C.: Published by the Carnegie Institution of Washington October, 1906 CARNEGIE INSTITUTION OF WASHINGTON Publication No. 36, Part II. FROM THE PRESS OF THE WILKENS-SHEIRY PRINTING CO. WASHINGTON, D. C.