In this series it appears that the proportion of deaths from Small Pox is, to the total mortality, as 1 in 11.2; that is, 89 in 1000.

TABLE III.
Years. Total Mortality. Mortality from Small Pox. Proportion. Proportion to 1000.
1784 20,454 1210 1 in 17 59
1785 18,919 1999 1 9-1/2 106
1786 20,445 1210 1 17 59
1787 19,349 2418 1 8 125
1788 19,697 1101 1 17-3/4 56
1789 20,749 2077 1 10 100
1790 18,038 1617 1 11-1/4 89
1791 18,760 1747 1 10-3/4 93
1792 20,313 1568 1 13 77
1793 21,749 2382 1 9 11
1794 19,241 1913 1 10 99
1795 21,179 1040 1 20-1/4 49
1796 19,288 3548 1 54 18
1797 17,014 512 1 33-1/2 30
1798 18,155 2237 1 8 123
Total—293,350 26,579 1 11 90.9
In this series it appears that the proportion of deaths from Small Pox to the total mortality is 1 in 11, that is, 90.9 in 1000.

TABLE IV.
Years. Total Mortality. Mortality from Small Pox. Proportion. Proportion to 1000.
1804 17,038 622 1 in 27-1/2 36
1805 17,565 1685 1 10-1/2 96
1806 18,334 1297 1 14 71
1807 17,938 1158 1 15-1/2 65
1808 19,964 1169 1 17-1/4 58
1809 16,680 1163 1 14-1/4 70
1810 19,893 1198 1 16-1/2 60
1811 17,043 751 1 22-3/4 44
1812 18,295 1287 1 14-1/4 70
1813 17,322 898 1 19-1/4 52
1814 19,783 638 1 31 32
1815 19,560 725 1 27 37
1816 20,316 653 1 31-1/4 32
1817 19,968 1051 1 19 53
1818 19,705 421 1 47 21
Total—279,404 14,716 1 18.9 53
In this series it appears that the proportion of deaths from Small Pox to the total mortality is 1 in 18.9, that is, 53 in 1000.

LONDON:
PRINTED BY J. MOYES, GREVILLE STREET.

1.  This diminished mortality of young children is, like that of fevers and fluxes, owing chiefly to the improvements in ventilation and cleanliness, but greatly also to laying aside the custom of exposing them to the open air in winter and early in spring; either from inadvertency, or from the false notion of rendering them hardy, whereas they thereby catch inflammations of the lungs. Nothing tends more to the health, strength, and growth of children, than genial warmth. It seems chiefly owing to the great plenty and cheapness of fuel, that the race of people in Lancashire are so superior in their form and size. In Buckinghamshire, on the contrary, where fuel is extremely scanty and dear, the race of people is small and puny, insomuch that it is provided by Act of Parliament that men shall be admitted into the militia of a smaller stature in this than other counties.

2.  See Pfaff Neuen Nord v. Archiv. B. I.

3.  See Serious Reasons for uniformly opposing Vaccination. By John Birch. London, 1807.

4.  See Inquiry into the Antivariolous power of Vaccination. Ed. 1809. There is an article in the Edinburgh Medical Journal by the same gentleman in 1819, in which he mentions that he had heard of several deaths having occurred from cases of Small Pox after Vaccination. But, admitting this, it is utterly incomprehensible by what process of reasoning Mr. Brown could on such premises arrive at the conclusion that Vaccination ought to be exploded and abandoned.

5.  See also a clear and able exposition of this subject in the Medical and Surgical Journal of Edinburgh for July, 1818, by Mr. Dunning, of Plymouth.

6.  Since the first publication of this Tract, it has appeared that in the succeeding year (1819), the deaths from the Small Pox had advanced to 712; which ought to add to the perseverance, zeal, and vigilance, of the friends of humanity in prosecuting Vaccination.

7.  Dr. Edward Jenner.