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District, we know that the rain-fall, instead of being lessened by 
elevation, is sometimes enormously increased. Even on Lans- 
down, the highest ground we have about Bath, the quantity of 
rain would seem to be sometimes greater than at the Institution. 
But this circumstance will be further spoken of presently, when I 
come to mention the late Mr. Weston’s observations at Ensleigh. 
Mr. Lockey’s register gives a return of the yearly number of 
wet days for the first nineteen years of his series of rain measure- 
ments, 1834—1852, the average number being 185. The mean 
rain-fall at Swainswick for the same nineteen years is 26°75 
inches. If we compare this relationship of wet days to rain-fall 
with the Institution returns for the ten years 1865—1874, we 
find it reversed in this last instance ; the yearly average number 
of wet days at the Institution being only 161, with a rain fall 
exceeding that at Swainswick by more than three inches. In fact, 
the average number of wet days at Swainswick even exceeds the 
number at Torquay, according to Mr. Pengelly’s return. But this 
relationship seems to vary much in different years in Mr. Lockey’s 
own register, in which we find a greater number of wet days in 
the years 1841 and 1848, in which the total rain-fall was 29.54 
inches, and 34.38 inches respectively, than in the year 1852, in 
which the rain-fall reached the large amount of 42.64 inches. 
Still, it may be that the rains at Swainswick, on an average, are 
lighter and more frequent than at the Institution, so as to explain 
the above discrepancy. 
From the rain-fall at Swainswick, we may pass to that at — 
Oakwood, on Bathwick hill, with which it is interesting to compare — 
it ; the two places being much about the same altitude above the — 
sea. While Swainswick is two miles north of Bath, Oakwood is — 
nearly the same distance east of it. The rain-fall at Oakwood was — 
measured by Mr. Dobson for eight years, 1858—1865, the average — 
fall, as deduced from those years, being 27.830 inches. The first — 
six of these years admit of comparison with Mr. Lockey’s register ; 
the average fall for those years being at Oakwood 28.616 inches, — 
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