me. a. w. preston’s meteorological notes. 205 
A great deal of my own collecting has been done in the 
early morning hours snatched from sleep and spread over 
some years ; but I trust that some one with more time at their 
disposal may carry on the quest, and if I can assist in the 
identification of species by slides and specimens or otherwise, 
I shall be only too pleased. I trust I have said sufficient to 
induce members who have the opportunity of doing so, to 
explore the lower reaches of the river Yare and the cuttings 
running into the land, and also to put Wroxham, Hoveton, 
and Salhouse Broads under inspection, with a special view 
to increase our knowledge of the habitats of the Fresh-water 
Polyzoa in the county. I trust also that a sharp look-out will 
be taken for Victor ella pavida, and no one would receive greater 
pleasure than myself in examining a specimen taken in 
Norfolk. 
VII. 
METEOROLOGICAL NOTES, 1910. 
(From observations taken at Norwich.) 
By Arthur W. Preston, F. R. Met. Soc. 
Read 31 st January, 1911. 
January. 
The year entered with mild weather, but considerable falls 
of snow occurred in the third week of the month, with some 
severe frosts. On the nights of the 25th, 26th and 27th the 
screened thermometer fell to 22. 7 0 , 21 0 , and 20.8°, and on 
the surface of the snow the exposed instrument fell to 16. 2 0 , 
13 0 , and io.8° respectively. The falls of snow in the third 
week were such as are usually experienced only in our hardest 
