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15
I am most anxious to check, for it is, without doubt,
the very worst of all the unwholesome influences
with which you have to deal; and until it is corrected,
you will never be secure from those outbursts
of disease which appear to set your sanitary
measures at defiance. This has happened in the
course of the last quarter, and it will occur again
and again, until the evil is eradicated.
Lastly, as regards the Meteorology of the year,
the principal facts are shown in the last Table of
the Appendix; and, as usual, they are deduced from
the observations made at Guildhall under the superintendence
of Mr. Haywood. The range of the barometer
has been about two inches, viz., from 28.84
to 30.8. The lowest point was reached on the 8th of
October, 1857, and the highest on the 12th of the
month following,—the average for the year having
been about 300. The thermometer has had a daily
range of from 9° to 21.80. The highest point, 89.9,
was attained on the 16th of June, and the lowest,
19.5°, on the 3rd of February, 1857; but in the
months of May, June, July, August, and September,
it reached to between 77° and 89.9°; and in November,
December, January, and February, it fell to
between 19.5° and 31.50. The quantity of moisture
in the atmosphere has been generally large, for the
degree of humidity has ranged from 69 per cent. in