+--------+-----------+---------+-----------------+ | | | | Ratio of deaths | | Years. | Strength. | Deaths. | per 1000 of | | | | | mean strength. | +--------+-----------+---------+-----------------+ | 1817 | 177 | 34 | 192 | | 1818 | 135 | 12 | 89 | | 1819 | 130 | 45 | 346 | | 1820 | 143 | 12 | 84 | | 1821 | 82 | 18 | 219 | | 1822 | 194 | 10 | 52 | | 1823 | 79 | 4 | 51 | | 1824 | 108 | 21 | 194 | | 1827 | 32* | 3 | 94 | | 1828 | 129 | 19 | 147 | | 1829 | 133 | 31 | 233 | | 1830 | 155 | 21 | 135 | | 1831 | 161 | 20 | 124 | | 1832 | 157 | 29 | 185 | | 1833 | 164 | 37 | 226 | | 1834 | 185 | 32 | 173 | | 1835 | 154 | 18 | 117 | | 1836 | 160 | 4 | 25 | +--------+-----------+---------+-----------------+ | Total | 2478 | 370 | ... | +--------+-----------+---------+-----------------+ |Average | 137 | 20 | 149·3 | +--------+-----------+---------+-----------------+ * 127 men were here for one quarter of a year only, which is equivalent to 32 for a whole year. “Thus the local circumstances remaining the same, the mortality from fever yet varies exceedingly. It is the same with the typhus of temperate countries, showing that in addition to malaria, presumed to be ever present, a something more is required, that we must look for in the constitution of the atmosphere.”