1394.] The Parasitic Protozoa Found in Cancerous Diseases. 811 
FIG, 3. 
Cells from different cancers of the breast, showing various forms of parasites in the 
cell protoplasm X 1,200. 
FIG. 4. 
a and 4, Groups of cells containing intracellular parasites X< about 1,000; ¢ saree’ 
alveolus from edge of rapidly growing carcinoma of breast, showing numerous parasites 
X about 400. 
bodies may be seen partly within and partly without the 
nucleus in the act of passing through the latter into the cell 
protoplasm. In certain cases the nucleus seems to become 
filled up with numerous small parasites which escape into the 
cell protoplasm after having burst through the nucleus* The 
* See “Preliminary Note on some Parasitic Protozoa found in Cancerous Diseases.” 
By M. Armand Ruffer, M. D. and J. Herbert Walker, M. A. B. Medical Journal, 
July 16, 1892. 
Also, “Recent Researches on Protozoa and Disease.” By M. Armand Ruffer, 
M.D. B. Medical Journal, Oct. 14, 1898. 
