Bui. 90 ; Part I, Bureau of Entomology, U. S. Dept. of Agriculture. 
Plate IV. 
Fig. 1.— Supply Cart Used with the Improved System op Fumigation, i Author's 
Illustration. 1 
Fig. 2.— Supply Wagon Devised by C. E. McFadden, of Fullerton, Cal. (Original.) 
