522 Journal of Agricultural Research voi. xiri. no. io 



(lo) 5. disparts is not pathogenic to silkworms (Bomhyx mori Lin- 

 naeus) or to army worms (Cirphis unipuncta Haworth). 



(ii) 5. disparis is not pathogenic to human beings, guinea pigs, or rab- 

 bits. 



(12) The most striking pathological changes during the course of the 



disease occur in the muscle tissues of the caterpillar. 



(13) Many observations and tests show that the new disease did not 



occur in this country prior to 1917. 



(14) Field experiments were conducted with S. disparis in sections of the 



gipsy-moth infested territory. 



(15) Success was obtained many times in reproducing the disease in the 



field. 



(16) In two places quite a severe epidemic was created. 



