PLATE 29. 



Green pears inoculated with Bacillus amylovorus. 



These were inoculated from the same poured plate and at the same time as the shoots shown in plate 28, but the photographs were made 

 two days earlier. The inoculations were by means of a few needle- punctures. The inoculated parts browned, softened, shriveled 

 slightly, and were extruding bacterial slime from small cracks and from many stomata. Beyond the browned area there was a water- 

 soaked area. The internal injury was extensive m one fruit nearly the whole interior had softened and was occupied by the 

 bacteria. These tissues were filled with grayish bacterial slime to such an enormous extent that on handling them the fingers 

 dripped with it. Inoculated July 10, 1905. Photographed July 18; about natural size. Poured plates made from the interior of 

 these fruits yielded pure cultures of B. amylovorus. 



