VEGETABLE PABASITES AND WEEDS 185 



Meteorology, Waldo; Chemistry of the Farm, Waring- 

 ton ; American Weeds and Useful Plants, Darlington ; 

 The Spraying of Plants, Lodeman ; Economic Entomology, 

 Smith ; Fungous Diseases of Plants, Duggar ; Diseases 

 of Economic Plants, Stevens and Hall. 



