CHARLES PACKARD. 



EXPLANATION OF PLATE II. 



FIG. 7. Egg radiated 35 min. Killed 34 min. after insemination. 

 FIG. 8. Egg radiated 25 min. 42 min. 



FIG. 9. Egg radiated 35 min. 39 min. 



FIG. 10. " " " 34 min. 



FIG. ii. " " 40 min. " 



