1906.] Experimental Analysis of the Growth of Cancer. 



201 



11 tumours developed; i.e., 55 per cent, of the implantations were 

 successful. 



(2) On the 751st day of propagation, a second tumour of Transplantation 45 , 

 Series C, was transplanted into 30 mice, the experiment being labelled 46 F. 

 No deaths occurred in the succeeding 10 days, and 14 tumours were obtained ; 

 i.e., 47 per cent, of the implantations were successful. 



Fig. 1. — Illustrates the method of constructing the graphic records of transplantation 



experiments (see text). 



(3) On the 753rd day of propagation, a third tumour of Transplanta- 

 tion 45, Series C, was transplanted into 40 mice and the experiment labelled 

 46 G. Eight mice died in the first 10 days following transplantation, and 

 21 tumours developed in the 32 survivors ; i.e., 66 per cent, of the implanta- 

 tions were successful. 



(4) On the 768th day of propagation, a fourth tumour of Transplanta- 

 tion 45, Series C, was transplanted into 20 mice, 46 K. One mouse died in 

 the first 10 days and six tumours developed in the remaining 19 mice ; 

 i.e., 32 per cent, of the implantations were successful. 



VOL. LXXVIIL — B. E, 



