Bui. 780, U. S. Dept. of Agriculture. 
Plate 1 1 
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Photographs of Sections of the Stomach of the Honeybee as Seen 
Through the Miscroscope. 
A, entire cross section of stomach (queen) and Malpighian tubules, showing infection of these organs 
with Xosema apis: B, a portion of A more highly magnified; C, a small portion of a longitudinal 
section of a stomach from a healthy bee: Z>, similar to C, but from a Xosema-infected bee: E, infected 
epithelium highly magnified, the disease as seen in America; F, similar to E, but from a preparation 
made by Zander in Germany. (Original.) 
