EDITORIAL GLEANINGS. 319 
the discussions. To those who cannot attend the meetings of the 
Congress an invitation is extended to submit papers on subjects 
relating to the fisheries, mailing them to the Secretary-General of the 
Congress in season to reach him prior to the opening meeting. Tor 
the guidance of those desiring to participate in this manner, a scheme 
of subjects is submitted, but the papers need not be restricted to the 
titles suggested. 
During the week beginning September 20th the headquarters of 
the Congress will be established in the New Willard Hotel, Washing- 
ton, D. C., where information relating to hotel accommodation, 
transportation, places of interest, and other matters will be avail- 
able. All communications and inquiries before that date should be 
addressed to the Secretary-General of the Congress, Bureau of 
Fisheries, Washington, D. C. 
Some days ago a curious sight was witnessed by the river-watcher 
and another gentleman on the banks of the River Helmsdale, in 
Sutherland. A Salmon, estimated to weigh between 20 lb. and 30 lb., 
was seen floating on its back and struggling in the water. On closer 
inspection it was seen that a large Hel had entwined itself about the 
Salmon’s tail, and was holding it ina vice grip. With the Hel round 
its tail, the Salmon was helpless in the water, as its only means of 
propulsion was rendered useless. Such fights, it is said, are by no 
means uncommon, and the Hel generally comes off victorious.— 
Shooting Times and British Sportsman, Aug. 1st, 1908. 
Caddis Larve and Water-lulres.— On an evening in the end of 
June of this year I noticed a Water-Rat busily engaged diving in our 
garden pond and bringing to the surface what I then thought was a 
piece of decayed wood, about an inch in length. The Rat nibbled the 
“wood” with apparent enjoyment. For fully twenty minutes I 
watched the little creature’s ceaseless industry. This year the water- 
lilies are sickly plants, and, to ascertain the reason why, the pond was _ 
emptied, when to our astonishment every root of every plant was 
riddled like a honeycomh, and the beds out of which they grew littered 
with the Rats’ succulent morsels of ‘‘ decayed wood,” which, on exami- 
nation, we discovered to be the larvee of the caddis-fly. How to 
destroy this pest and save the water-lilies was a vexed question. 
However, on revisiting the pond late in the evening, the mud bottom 
and water-plants were almost hid from view with birds, all too busy 
e 
