_ 



III LKX DKAN KIN i.. 



Amiilo- 

 aciil. 



Solution 

 I "-.L-d 



Leucin. 



tin saturated 



t per cent. 

 T V per cent. 

 | per cent 

 I per cent. 



1 per cent. 



2 per cent. 



Saturated. 

 3<j per cent. 

 Y\f per cent. 



3 per cent, 

 i per cent. 



3\j per cent. 



Tyrosin. 



4- + 



Glutamic 

 acid. 



r -v 



Aspartic 

 acid. 



TAHU-: I. 



Effects on Artticia Eggs. 



Effects on Ch<eto/>(crus Eggs 



No effects on segmentation : 

 later development retarded. 



Development very slightly re- 

 tarded. 



Development very slightly re- 

 tarded. 



.Development very slightly re- 

 tarded. 



Development slightly retarded. 



Development retarded after i 



hour. 

 Development greatly retarded ; 



a few eggs abnormal. 



Development retarded. 



Development stopped in the 

 gastrula stage. 



Eggs killed in early segmenta- 

 tion. 



Eggs killed at once. 



Eggs killed at once. 



Development accelerated. 



Development slightly ac- 

 celerated. 



Development slightly ac- 

 celerated. 



Development accelerated at 

 first, but stopped in bias- 

 tula stage. 



Development retarded after 

 2 hours; embryos fused. 



Development stopped in bias- 

 tula stage; many eggs ab- 

 normal. 



,' per cent, j Development stopped at 2-cell 

 stage; many eggs abnormal. 

 2 per cent. Eggs killed at once. 

 I per cent. Eggs killed at once. 



Aspara- 

 gine. 



Glycocoll. 



Alanin. 



3 V per cent. 

 V per cent. 



3 per cent. 



I per cent. 



No effects noted. 

 No effects notes. 



\"i> H'tVrl anted. 



Development retarded after 2 

 hours. 



ji'ff percent. No effects noted, 

 r'jj percent. No effects noted. 



2 percent.jNo effects noted. 



i percent. No effects noted. 



per cent, 

 per cent. 



Development retarded. 



Eggs lived for some time, 



but no segmentation. 

 Eggs killed at once. 

 Eggs killed at once. 



Eggs lived for some time, 

 but no segmentation. 



Eggs killed at once. 



Eggs killed at once. 

 Eggs killed at once. 



Development slightly ac- 



celerated. 

 Segmentation not affected; 



later development re- 



tarded. 

 Segmentation not affected; 



later development re- 



tarded. 



No effects noted. 

 No effects noted. 

 No effects noted. 

 No effects noted. 



No effects noted. 

 No effects noted. 



per cent. Development somewhat re- 

 tarded. 



slightly ac- 

 lerated. 

 I >e\ -elo'pment slightly ac- 



celerated. 



Segmentation not ;ill'ivti-d; 

 older embryos fused. 



