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19
advances; so that of every 1,000 deaths in the year at
GO and upwards, 330, or nearly a third of the whole
number, occur in the winter, and only 200 in summer.
These facts are fully illustrated by the following
table:—
Proportions of Deaths, per 1,000 Deaths, at different
Ages, and at different Seasons of the year.
AGES.
Quarters ending in
Entire
Year.
March,
June.
September.
December.
Under 5
298
350
393
338
342
5to 15
41
47
60
58
52
15 to 30
79
80
82
86
82
30 to 50
173
168
154
172
167
50 to 60
109
101
89
107
102
60 to 70
133
123
103
112
118
70 and over
167
131
119
127
137
Total at all Ages
1,000
1,000
1,000
1,000
1,000
CAUSES OF DEATH.
The diseases which most contribute to the high
mortality of old persons in the winter are inflammatory
affections of the lungs; and the disorders which
cause the large summer death-rate of children are
tabes, marasmus, &c., and diarrhoea. Phthisis is
most fatal in spring and autumn, and so are the
convulsive affections of children; but zymotic
maladies, with few exceptions, are most hostile to
life in the summer time, for they then cause about