SMALLPOX, SYPHILIS, CANCER, ETC. 201 



of the parasites in cancer, and without prejudice to future 

 specific recognitions we may name the parasites : Plasso- 

 myxa forma-maligna. 



Imitation- cancer. If I wished to make an imitation of 

 cancer, I would devise a set of the thinnest knives about 

 1 mm. long mounted in bunches at the ends of fine steel 

 stems. Pushing with aseptic precautions a bunch just 

 through the skin the knives should be left in place till the 

 epidermal cells had grown beyond their points, which then, 

 increased in number, should again in various directions be 

 pushed deeper. This process repeated for a long time would 

 reach lymph-glands, and a series of ropes of epidermal cells 

 would stretch from skin to glands. 



Those, who from day to day are exposed unprotected (as 

 in screen-work) to X-rays, repeat in a way the above 

 imaginary experiment ; the connective-tissue-damaging rays 

 taking the place of knives. As is shown in Part IV X-rays 

 epithelioma contains no parasites : it is an imitation-cancer. 



The best imitation-cancer I know of was obtained by 

 Lambert Lack, who injected an emulsion of its ovary into 

 a rabbit's peritoneum. Cancer-like growth followed in 

 peritoneum and glands. Mr. Lack kindly gave me two 

 sections. Careful examination showed there were no para- 

 sites ; it is an imitation-cancer, a very exceptional case of 

 cell-transplantation. It might easily have been a real 

 cancer, if the rabbit had had in it seasoned plassomyxes, 

 wilich found in the emulsified cells suitable hosts. 



