Mr. Worcester on Longevity. 13 
1 in 58,514: in Wales, in a population of 700,210, 21 centena- 
rians; 1 in 33,343: in Scotland, ina population of 1,956,706, 
102 centenarians ; 1 in 19,183 : in Ireland, in 1824, ina popu- 
lation of 6,801,827, 349 centenarians; 1 in 19,833. In New 
Hampshire, in 1823, in a population of 244,161, there were at 
least 12 centenarians ; equal to 1 in 20,000. It is is stated by 
Larrey, chief surgeon in the French army in Egypt, that in the city 
of Cairo, there were, in 1800, 35 persons of 100 years of age; 
which, supposing the population to be 400,000, will make 1 to 
11,428.—Dr. Ramsay, in his History of South Carolina, enu- 
merates 9 persons who were'living in that State, in 1809, at the 
age of 100 years or upwards ; and 9 who had died in that State 
at the age of 100 or more, from 1798 to 1809. 
“Russia, Norway, Sweden, Denmark, Scotland, Ireland, 
and Switzerland,’’ says Malte-Brun, ‘‘are the countries which 
furnish the most numerous and the most authentic examples of 
men and women having had their lives extended beyond the period” 
of 100 years. In these countries we may reckon one centenarian 
for every 3,000 or 4,000 individuals.”?” The New Edinburgh En- 
cyclopedia observes: [Vol. XII. p.561.] ‘* From a comparative 
view of many tables of mortality it results that * * * of 8,119, 1 
may complete a century.” According to Duvillard’s table of mor- 
tality in France, only one in 4,830, in that country, attains the 
age of 100 years. 
In the preceding quotation from Malte-Brun, the proportion of 
persons who arrive at the age of 100 years, in the countries 
specified, is probably stated too low. 
The following table exhibits the results of observations for 
several countries and cities. The first column of figures repre- 
sents the number of years for which the observations were made, 
