Modification of Germinal Constitution of Organisms 195 



C) An L. dcccDiliiieata tj-pe in which L. dcccmU)icata 

 was in the main dominant, but which exhibited a \'ariablc 

 range of variabilit}-. 



D) Intermediate hybrids between L. deccmlincata and 

 L. midtitacniata. 



E) Forms which were either L. midtitacniata pure, or 

 heterozygotes, in whicli L. midtitacniata was completely 

 dominant. 



Out of 1,857 adults seriated, the following census was 

 made: 



ABODE 



47 29 1,311 261 103 



This census shows that while L. decemlineata is either the 

 dominant or prepotent member of the combination, it did 

 not come out of the mixture entirely without contamination. 

 This experiment was continued in a cage exactly like 

 the first, and the following materials were taken at random 

 from the first generation as the parents of Generation II : 



This material immediately began breeding and gave during 

 the month of August a large progeny which emerged early 

 in September, and immediately went into hibernation. 

 WTien seriated, this material gave the following results: 



A B C D E 



o 29 247 42 o 



These passed the winter of 1908-9 in the ground and 

 emerged in June, 1909. All that emerged were allowed to 

 reproduce in the cage and were supplied with food as fast 

 as it was consumed. These gave a very large progeny 

 which appeared to be uniformly of the dominant types of the 

 first and second generations. Seriation of the material 



