182 Miscellanea. 
among European troops is nearly three times as great as among 
natives; that while seventy-five per cent. of the Kuropean troops 
died at the Gamola, the mortality among the black troops was little 
more than two per cent.; that the number of deaths from cholera 
in India is twice as great among Europeans as among natives; that 
the native troops in Bombay are as healthy as the British troops 
are in England. These comparisons will be found to be confirmed 
in all the other colonies. 
Perhaps the most striking result exhibited by the tables or. 
diagrams is the great amount of mortality among the military as 
compared with the naval service, or with the civil population of a 
country. When it is remembered that the former are selected with 
a special view to health, while the latter are taken promiscuously, 
an opposite result might have been anticipated. In Britain the 
number of deaths among the troops, generally, is 15 per 1000. 
while among officers and the civil population it is only 9 per 1000. 
In France the returns of the army of the interior show a mortality 
of 18 per 1090, while among the civilians it is 10 per 1000; and this 
is exceeded in all the colonies. In the island of Barbadoes the 
mortality among civilians is not more than 14 per 1000, while among 
Kuropean troops it is 58 per 1000. 
As compared with the mortality in the navy the crews in the 
Mediterranean, South American, and Home Station are all greatly 
more healthy than any European troops, the average mortality being 
9 per 1900. In the East Indian command the average is 15 per 
1000, corresponding with that of the troops in Britain. In the West 
Indian and North American command it is 18 per 1000, being the 
same as among the British troops at Malta, and in the Cape of 
Good Hope, and West Africa command, where the mortality among 
the troops is 450 per 1000, or 45 per cent.; in the navy it is only 
25 per 1000, or 23 per cent. 
The effect of the means adopted for checking disease in the three 
great countries of England, France, and Germany, during the past 
century, are such, that while formerly one out of every 30 of the 
population died each year, now the average is one in 45—reducing 
by one-half the number of deaths in these countries. In the year 
1700 one out of every 25 of the population died in each year in 
England. In 1801 the proportion was one in 35, in 1811 one in 38, 
and in 1848 one in 45, so that the chances of life have in England 
nearly doubled within 80 years. In the middle of last century the 
rate for Paris was one in 25, now it is one in 32.—Proceed. Brit. 
Association, 5th August 1850. 
On THE Rapip DrEcREASE oF THE NaTIVE POPULATION OF 
POLYNESIA. 
Tur fertility of hybrid races, originating in the intermixture of 
two races whose affinity is most remote, is a fact of which there can 
be no doubt whatever; and there is strong reason to believe that 
these hybrid races, the parents of which are Europeans on one side, 
