Issued February 20, 1912. 
Eas DHPARIMENT OF AGRICULTURE. 
BUREAU OF PLANT INDUSTRY—Circular No. 91. 
B. T. GALLOWAY, Chief of Bureau. 
THE NEMATODE GALLWORM ON POTATOES AND 
OTHER CROP PLANTS IN NEVADA. 
BY 
©. 8. SCOFIELD, 
Agriculturist, Western Agricultural Extension. 
WASHINGTON : GOVERNMENT PRINTING OFFICE : 1912 
