1905.] On the Cytology of Malignant Growths. 



E 



z o 

























B 



nv/ 



Y 







fa 



1T7T 



— I 







c e 



nlT 



iK 



K 7C 



Number of chromosomes 



Epithelioma of the Scrotum. 



ID 15 zo 25 



Number of chromosomes 



30 35 40 45 50 



Epithelioma of the Penis. 



K> ,15 20 25 



Number of chromosomes 



30 35 40 45 50 



Deciduoma malignuni. 



B. Epithelioma of the Scrotum. The maxima about 16, 24, and 32 are distinct, that 



about 64 not so clear. 



C. Epithelioma of the Penis. — The maxima in the regions of 16, 24, 32, 48, and 64 are all 



fairly distinct. 



D. Deciduoma malignum. — There is considerable irregularity in the nuclei in this growth, 



which was somewhat advanced, and deviations are therefore to be anticipated. 



Number of chromosomes 



30 5? 35 



Combined Curve drawn from the Results shown in the preceding Four Cases of Cancer, 

 viz., carcinoma of rectum, epithelioma of scrotum and penis, and deciduoma 

 malignum. The three maxima about 16, 32, and 64 are unmistakeable. 



2 C 2 



