Bul. 1046, U. S. Dept. of Agriculture. PLATE II. 
Fig. |.—REMOVABLE CANVAS COVERS USED IN THE WHEAT-RUST NURSERY 
TO RETAIN MOISTURE. 
A urediniospore sprayer is shown in operation. 
FIG. 2.—PoOT CONTAINING RUSTED SEEDLINGS FROM THE GREENHOUSE. 
Used in establishing infection centers in the wheat-rust nursery. 
