AGE OF PERSONS AFFECTED. 183 



AGE. Cancer of the liver, say Frerichs, belongs 

 pre-eminently to the later periods of life, although Farr 

 mentions three cases where it appeared in early infancy, 

 one in an infant three months old (liver and lungs), one 

 in a boy, two and a half years old (testis), and another 

 of the same age (pelvis). Of 31 cases observed by that 

 author he gives the following results : 



From 20 to 30 years old .... 2 cases. 



30 to 40 .... 4 



40 to 60 .... 15 



60 to 70 .... 8. 



Above 70 .... 2 



Total 31 

 Of 52 cases recorded by other observers we have : 



From 20 to 30 years old .... 5 cases. 



30 to 40 .... 10 



40 to 60 .... IV, 



60 to 70 .... 11 



AW,; 70 .... 



Total 52 



Of 8,289 deaths from cancer in Paris as recorded by 

 irk ami Popp,578 cases are ascribed to the liver alone, 

 pears to exercise but little influence in predis- 

 posing ( :;m<HT of the liver, as both are fairly balanced. 

 Of the 31 cases observed by Frerichs, 10 were men and 

 21 women; of 60 other cases collected from various 

 sources :>5 were men and 25 women ; and of the total 

 91 cases, 45 were males and 46 females. Of 31 cases 



