On the alleged Increase of Cancer. 217 



tabulated figures, the nature of the progression of the rates of 

 mortality. 



This distribution into individual years might be accomplished by 

 skilful application of analytical processes ; but the method would be 

 very difficult on account of the nature of the material available, and 

 the results could scarcely fail to be unsatisfactory and untrust- 

 worthy. The end can be much more satisfactorily attained by a 

 modification of the late Joshua Milne's graphical method of con- 

 structing mortality tables, which has been fully described, and of 

 which the beautiful accuracy has been demonstrated and illustrated 

 by one of us (Gr. K.) in two papers in the ' Journal of the Institute 



