286 



CARL W. BOCK 



as the experiment progresses up to and including the eleventh 

 day. On the twelfth day he does not beat the 22 group at all, 

 although he beats it again on the thirteenth day and on suc- 

 ceeding days. Apparently the factor which makes for the pro- 

 duction of the 22 group, and with progressively increasing fre- 

 quency, ceases for some reason to be operative on the twelfth 

 day. The factors that make for the production of a group in 

 general are either environmental or internal, but the former 

 cannot enter into the discussion because the general conditions 



46. 



GRAPH I. 



under which the observer worked were practically identical 

 throughout the seventeen days of experimentation. Moreover 

 the observer's general health remained the same, and indeed 

 there is no way in which the observer's acts on the twelfth day 

 are explicable except on the assumption that some very radical 

 change had taken place within his organization, which is con- 

 trary to fact. Consequently it must be assumed that ob- 

 server did beat the 22 group, appearances to the contrary not- 

 withstanding, on the twelfth day. On this day observer beat 



