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12
temperature was 55.7 and the maximum 59.0, showing a range of
only 3.3, whilst on the 15th of the same month the minimum was
22.1 with a maximum of 41.0, a range of 18.9.
On the 19th December the temperature fell to 16.5 and did not
rise beyond 30.1 during the day, and on the following day it again
descended to 16.0.
(The minimum temperature of January 1st, 1860, was only 51.7.)
OZONE.
The observations on ozone through the year fully corroborate my
previous experience of the deoxidizing influence of London air over
that of our District.
that of our District. This was specially marked during the eight
days ending March 13th, as shown below, according to a scale
registering 0 to 10.
Days.
Wind.
Ozone.
March 6th
W.
4
„ 7th
s. w.
4
„ 8th
w.
9
„ 9th
N. W. W.
6
,, 10th
S. E.
0
,, 11th
S. s. w.
*1 * The wind veering
„ 12th
s. w.
to S. S. W. just
10 before the obser-
,, 13th
s. w.
10 vation was taken.
The greater or less rapidity of motion appears also to exercise
considerable influence on the development of this chemical condition
of the air.
The amount of rain-fall during 1859 was 27.35 inches, and the
number of days on which it fell 177.
I have the honor to be,
Gentlemen,
Your faithful Servant,
FREDERICK J. BURGE,
Medical Officer of Health.
Hammersmith, May 31, 1860.
Churchman, Printer, Hammersmith.