MR. CHAS. D. SOAR ON THE HYDRACHNIDS. 
S3 
VII. 
THE HYDRACHNIDS OF THE NORFOLK BROADS. 
By Chas. D. Soar, F.R.M.S. 
(Communicated by Mr. F. Balfour Browne, M.A., F.R.S.E.) 
Read 28 th February, 1905. 
Believing the Norfolk Broads to be a good and prolific 
collecting ground for “ Fresh Water Mites,” I spent a few 
days in the autumn of 1898 and the Easter of 1899 in that 
district with some Quekett friends who were also interested 
in Microscopic pond life but in different forms. I found 
a large number of specimens; but I was a little disappointed 
at the smallness of the number of species found, which only 
amounted to about thirty in all. Potter Heigham was the 
centre at which we stopped, going out in a different direction 
every day. By this means we left very little water round 
Potter Heigham unexplored. The temperature in the district 
was very low, both in the autumn and spring, which might 
partly account for the paucity of species found, for no doubt 
the delicate species betake themselves to the deep water in 
cold weather, a habit which renders them inaccessible to 
the collector. I think I should have obtained much better 
results if I had again visited the district during the summer, 
but the opportunity never occurred. However, although 
I could not get to the Broads, the Broads in a way came to 
me. Mr. Balfour Browne, the Director of the Sutton Broad 
G 2 
