279 
Borough of Bath during the years 1867-1868” (p. 3), he has tabu- 
lated the results of barometric and thermometric observations 
carried on in the above locality for a series of eighteen years, 
commencing with 1849 and ending with 1866. This register 
is not comparable with the one at the Institution except for the 
last year, but itis valuable as giving us the meteorology of Bath 
over a considerable period of time anterior to the commencement 
of the Institution register, the two together forming a continuous 
register, though carried on in different localities. It is curious 
also to notice, notwithstanding the circumstance last mentioned, 
that the mean temperature of the above eighteen years is stated to 
be 50°.5, being exactly the same as the mean of the subsequent years, 
deduced from the Institution observations.—That the two means 
would not be always the same in particular years is shown by 
Mr. Barter’s registers for the years 1866, 1867, and 1868, the two 
latter being given separately at pp. 55 and 73. In the first of 
these years, 1866, Mr. Barter’s mean is no less than 2°.7 higher 
than the Institution mean: in 1867 it is 2°.0 higher, in 1868 the 
difference is further reduced, but it is still 1°.3 in excess. 
This is not what we might expect, nor in accordance with the 
results of registers kept in other places, before alluded to, which 
all lead to the inference that the Institution Gardens have a 
slightly higher mean temperature than those parts of the town which 
are more elevated above the river. Further comparison, therefore, 
is necessary to explain the anomaly, which may possibly be due to 
the circumstances under which the instrument in the Paragon is 
placed.* From whatever cause it arises the anomaly shows itself 
* The great care required in fixing a thermometer so that it shall not be 
influenced by contiguous buildings was remarkably shown by some comparative 
observations of my own in Darlington Place during the hot summer of 1868. On 
the morning of the 23rd of July, at 9 a.m.—the previous day having been 
extremely hot with a maximum temperature of 91° and all walis necessarily 
much heated,—a thermometer at my hall window, though hanging quite free 
from the wall and on which the sun itself never came, was 75°, another 
