PLATE 30. 



Blighted quince-shoots and pear-fruits. 



Twelve inoculations were made and all were successful 8 quince-shoots and 4 pear-fruits. None of the checks contracted the disease. The organism was 

 introduced by delicate needle- pricks. The subculture used was derived from a poured-plate colony obtained from the interior of one of the pears shown in 

 plate 29. Owing, no doubt, to the riper and therefore less susceptible condition of the tissues, and possibly also to somewhat cooler weather, the disintegration 

 of the deeper tissues of the fruits had not proceeded as far as in the pears inoculated on the same tree 1 days earlier ; in those fruits first inoculated the decay 

 was from 5 to 10 times as extensive on the 8th day as in the second inoculations on the 11th day. Inoculated July 20, 1905. Photographed July 31. 



