ic AN ee ee 
pjects of Nat, Hist _ 
» bY 
)OTE, M D., 
mont AVe.. 
yphia, Penna, 
HESSIAN FLY, 
HISTORY, CHARACTER, TRANSFORMATIONS, 
AND HABITS. 
BY ASA FITCH, M.D. 
ORIGINALLY PUBLISHED IN THE AMERICAN JOURNAL OF 
AGRICULTURE AND SCIENCE, VOLS. IV., V. 
ALBANY: 
PRINTED BY JOEL MUNSELL. 
1846. 
