Michigan Academy of Science, 



Seventeenth Annii;il Pii'port. 

 Plate VII. 



A. Potato plant affected with Leaf UoU. This plant was one of a I'ow in which 

 90 per cent .showed .similar rolling of the leaves. 



B. Cncnnihers affected with White Pickle Disea.se. The larg(>r warty ones 

 show the early stage while the pale smooth pickles are the tyi)ical "White I'ickles." 



