1912.] 



Radium in Some Carcinomatous Tumours. 



173 



Keierence JMo. 



Leak o± substance 

 (Natural leak = 1). 

 Constant capacity electroscope. 



TV • • . 



Divisions per minute due 



to emanation. 

 Emanation electroscope. 









697 G- 



1-06 



0-004 



147 C 



1 -20 



-004 



440 



1 -29 



0-292 



*791 



1 -48 



-068 



793 



2-24 



1-373 



697 C 



21 -28 



153 5 



* Flask cracked ; equilibrium value probably not attained. 



Of the entire series of five non-malignant and 28 malignant tissues that 

 have been examined, it appears, therefore, that three cases of primary- 

 carcinoma and one case of secondary carcinoma yield sufficient evidence that 

 in them radium was present. Comparison with the radium standard 

 (1-57 x 10~ 7 mgrm.) shows that they possess the following amounts of radium 

 per gramme of dried extracted carcinoma tissue : — 



No. 440. Spheroidal cell carcinoma, axillary glands secondary l - 08 x 10~ 8 mgrm. 

 to breast 



No. 791. Primary spheroidal cell carcinoma, breast 0-188 x 10~ 8 „ 



(at least) 



No. 793. „ squamous „ tongue 3 - 94 x 10~ 7 „ 



No. 697. „ „ „ cervix 2-73 x lO" 5 „ 



