_— 
= ee ee 
Proceedings. hi 
trace of a regular increase’’ (p. 232). The extension of buildings, 
and therefore of chimneys, is perhaps the cause of the idea. 
W. H. Tynpatu’s Meteorological Notes, Redhill,* were con- 
tinued later in 1896+ (for 1892-4) and in 1895} (for 1895-7). 
1894. 
A. E. Watson. On Changes in the Character of Certain 
Months. § 
Based on ‘records kept at Croydon,’ which show that the 
January rainfall has decreased, so that ‘‘ from being, as it was 
from 1866 to 1875, by far the wettest month of the year, it has 
been, from 1881 to 1890, almost . . the driest.’”’ December 
also shows a decrease, but November an increase, as also May. 
December seems also to show a decrease in mean temperature, 
but January some increase. October, again, is colder. The 
conclusion (p. 62) is that “‘the character of particular months 
may change, as time goes on, to a very marked extent.” 
W. Marriorr. Audibility of ‘Big Ben” at West Norwood 
under certain Meteorological Conditions. || 
Naturally the audibility was greatest at the times of least 
noise, as on Sunday evenings. The bell ‘‘ was most frequently 
heard with winds from West to North, and less frequently with 
winds from South to Hast’’ (244); also ‘“‘the percentage of 
audibility was greater with the low and high readings of the 
barometer than with the intermediate readings” (245). ‘The 
conditions most favourable for audibility are when a cyclonic 
disturbance is to the eastward of London, or when an anti- 
cyclonic area is in the neighbourhood. Under some such cir- 
cumstances there is a tendency for the wind to blow as a 
downward current.” 
1895. 
H. B. Guppy. Suggestions as to the Methods of determining 
the influence of Springs on the Temperature of a River, as 
illustrated by the Thames and its Tributaries.4 
Treats largely of Surrey rivers, and says, that ‘‘ small tribu- 
taries, like the Malden River [Hogsmill] and the Wandle... 
chiefly fed by head-springs, are under the control of the springs 
for the whole of their courses,’’ that is to say, their temperature 
varies less than in the case of longer streams. He concludes 
that ‘‘affluents mainly fed by head-springs and up to ten miles 
in length never get beyond the control of the temperature of 
* Proc. Holmesdale Nat. Hist. Club for 1890-2, pp. 1-4, 23-31, 71-76. 
+ Ibid. for 1893-5, pp. 16-21, 37. 
t Ibid. for 1896-8, pp. 7-11, 45-53, 82-92. 
§ Quart. Journ. Roy. Meteor. Soc:, vol. xx, pp. 59, &c. 
|| 1bid., pp. 243, &e. 
{ Ibid., vol. xxi, pp. 1-11. 
