CANCER 



141 



volts in the manner previously described ; desirous of seeing 

 if the age of the vegetable made any appreciable difference. 



Twenty-four hours later the area around the negative 

 needle was discoloured by moisture over some |-inch, and 

 a blackening patch was forming at the positive end. 



After twenty days the tuber had lost |-oz. in weight 

 (from 2-oz. to Ig-oz.) and in section presented the following 

 appearance : 



. Poj/f/on a/ne^ /7eec//e 



uncT^ec/et^area 



una^ectee/ urea 



/}£>rc/ 



A sketch of the other half may be helpful. 



This differed from the others in that the morbid growth, 

 if I may call it so, was more spherical than ovoid in shape 

 while the discoloured part extended half way from bottom 

 to apex and thence was linked with the negative connection 

 by the band shown in the drawing. 



In the darkened lower half also there were three cavities, 

 two of which may have been, but in all probability were 

 not, due to electrolysis, as perforation did not extend so far. 

 These cavities contained a somewhat offensive fluid, while 

 the upper part of the area partook of the semi-fluid character 

 referred to in the last experiment. 



To avoid recapitulation I refer the reader to the Chapter 



