PLATE 59 
Coccidioides immitis: 
A. —Camera-lucida drawing showing'parasites from fresh pus in various stages of 
development. 
B. —Photomicrograph of the hyphae and spores from an old potato culture. X 220. 
C. —Photomicrograph of a nodule of spleen from a guinea pig, showing adult para¬ 
sites lying free in granulation tissue. X 100. 
542 
