in July and repeated in August and the two sets of data. 01 - 

 tained from a single acric3 for the particular fungus and tem- 

 peratura in question. Many repetiticri3Cf this sort, war* u^uc 

 involving the same Maintained temperature in different experi- 

 mental series, and the growth rates of similar cultures in dif- 

 ferent aeries, usually agreed as closely a.s did those of du- 

 plicate cultures of the sacie series. This indicates that the 

 fungus materials and nutrient medium used did not appreciably 

 alter during the period of the investigation. 



48 



