490 



E. I. WERBER 



Fig. 10 Normal Fundulus embryo, eighteen days old, five days after hatching. 



Fig. 11 Synophthalmia bilentica, from ^2 gram molec. butyric acid, thirtj^- 

 four days old, three days after hatching. 



Fig. 12 Cyclopia synophthahnica, from acetone solution (35 cc. gram molec. 

 to 50 cc. sea-water) twentV-niiie days old, one day after hatching. 



