46 



GENERAL EMBRYOLOGY 



FIG. 20. Mitosis in cells of Salamandra maculosa. After Prenant and Bouin. 

 D, H. Primary spermatocytes, others, spermatogonia. A, B^C, X 1000, others, 

 X 800. A. Interkinesis or resting stage. B. Early prophase; spireme continu- 



