6o 



PROTOZOA AND DISEASE 



FIG. 1 8. BODIES OBSERVED IN A SCRAPING OF A TERTIARY SYPHILITIC 

 LESION. (Examined under a T V-inch oil-immersion lens.) 



An ordinary squamous epithelial cell devoid of movement ; 2, a similar cell, but 

 containing in optical section a granular mass in which are three typical 

 bird's-eye bodies, and at o' a group of granules in lively oscillation ; 3, another 

 epithelial cell, the nucleus of which is not seen, and which contains two highly 

 refracting inclusions ; 4, a free body of similar optical characters to the 

 inclusions in 3 ; 5 and 6, structures resembling an epithelial cell in size, but 

 containing large globules of a bright greenish appearance, and at o and o' groups 

 of smaller globules in oscillation ; 7 and 8, small bodies resembling parts of 

 5 and 6, lively oscillation in one, and oscillation and a greenish nuclear body 

 in the other ; 9, a large body, the pale central mass of which is not shown, but 

 globules and granules and a few wavy lines are seen on the surface ; 10 and 

 ii are the same body, 10 as seen at 7.20 p.m., and 11 as seen at 10.45 p.m., 

 when the preparation has cooled down. Wheji first seen, there was a group of 

 oscillating granules, o, and a single greenish curved structure to the left of 

 them ; later, the preparation having cooled down, the oscillating granules had 

 disappeared, and the body seemed to have divided into two. 



