THE RATES OF MORTALITY. 69 



Cancer. 

 The deaths from cancer during the first ten years were 

 65,989, and in the second ten years 90,808, giving an in- 

 crease of 22 per cent, in the death-rate. For males the 

 increase in the rate was 25-5 per cent., and for females 

 20-4 per cent. The maximum rate of increase occurred 

 with males between the ages of 45 and 55, and amounted 

 to 31*5 per cent., and with females between the ages of 

 55 and 65, the amount being 23*3 per cent. For every 

 hundred deaths of males there were 230*4 deaths of females 

 in the first ten years, and 220-8 in tlie second ten years. 



Cephalitis. 



This disease merits attention as being one which is gra- 

 dually becoming more fatal to infants and young children. 

 In the first ten years it was the cause of 35,331 deaths, 

 and in the second ten years of 45,827, the increase in the 

 rate of mortality being I5"0 per cent,; but with male infants 

 under one year of age it amounted to 32*5 per cent., and 

 for infants and young children under five years it was 26' 1 

 per cent, while for males at all ages above fifteen there was 

 a decrease of 1 1'8 per cent. 



The gradual and steady change which has taken place 

 during the last twenty-five years in the incidence of morta- 

 lity from cephalitis upon different ages will be seen from 

 the following numbers : — In the seven years 1848-54 the 

 number of deaths under one year was i\-6 per cent, of the 

 total number of deaths at all ages ; in the following seven 

 years it was i6-8 per cent. ; in the next six years i8"3 per 

 cent. ; and lastly, in the six years 1868-73, ^^ ^^^ ^^"^ P^i' 

 cent. The percentages of deaths at all ages under five 

 years for these periods were 42*6, 467, 49"4,and 52*8. 



The total number of deaths in each ten-yearly period 



