A Bacterial Disease of Stone Fruits 



385 



Fig. ")9. — Elberta pinch leavi inoculated with pun cultun of Bacterium Pruni. The j/rowth from 

 ,, ,, „. d a y -old-sit mi //< -glucose culturi wo. thoroughly mixed in oni hundred cubic centimeters 

 of sterile water and applied to th lea es by dipping the fingers into tin watei and then rubbing the 

 leaf between tiu thumb and thi fingei \ Inoculations were madt on July 16, 1912, and the photograph 

 wa taken on August %8, /•''/-' 

 n. Inoculated with a pure culture obtained from an apricot twig 



b, Inoculated with a pure culture obtained from a nectarine twig 



c, Inoculated with a pun culture obtained from a peach twig 



d, Inoculated with a pure vulture obtained from a plum twig 



e, Chei ' 8tt i ile water was applit d to the leaf 



