FUMIGATION 

 METHODS 



A Practical Treatise for Farmers, Fruit 

 Growers, Nurserymen, Gardeners, 

 Florists, Millers, Grain Dealers, Trans- 

 portation Companies, College and 

 Experiment Station Workers, etc. 



By WILLIS G. JOHNSON 



Formerly Professor of Entomology and Invertebrate Zoology at the 

 Maryland Agricultural College and Stale Entomologist; author of 

 many special reports on economic topics; associate editor A merican 

 Agriculturist weeklies ; Fellow in the American Association for the 

 Advancement of Science; Member of the Association of Economic 

 Entomologists, the A merican Pomological Society, the Society for 

 the Promotion of Agricultural Science, etc. : : : : : : : : : 



ILLUSTRATED 



NEW YORK 



ORANGE JUDD COMPANY 



1902 



