Fishes. 5163 



charis procured from the river Trent, and also some account of its 

 history in this country. Amongst other observations which they eli- 

 cited from the members, Mr. C. Gaudin remarked that " until recently 

 the plant has only flourished in tranquil places, and that it has only 

 produced female flowers." He adds " Elle appartient a la famille 

 des Hydrocharidees, dont nous avons un representant dans les pays, 

 THydrocharis Morsus-Ranse des marais de TOrbe. Richard a decrit 

 dans les Memoires de l'lnstitut de 1811, une Anacharis originaire de 

 Monte Video, et dont on ne connaissait que lesfleurs males. 11 pa- 

 rait qu'on n'en connaissait pas d'autre, car Endlicher n'en fait aucune 

 mention dans son ouvrage qui a paru en 1841, un an avant l'apparition 

 de la nouvelle Anacharis." Mr. Gaudin adds " It would be worth 

 while to examine if it would be useful to introduce it in our own lake, 

 for facilitating there the trials in pisciculture with which Dr. Chavannes 

 is occupied at this moment. Our lake contains much less fish than 

 the other lakes of Switzerland, because it has not sufficient aquatic 

 plants to furnish to the young fish a shelter from their enemies. 

 There are no places of refuge to protect them against the fishermen, 

 the large fish, storms, &c. It is probable that this plant would also 

 serve for food to different species." * 



John Joseph Briggs. 

 King's Newton, Swarkeston, Derbyshire, 

 June, 1856. 



Further Ibsults of the Artificial Breeding of Salmon at the Slormontfield Pond. 

 —On Saturday last, in company with two friends, I was present at the emptying of 

 Storraontfield salmon-rearing pond. The keeper having reported to Mr. Buist that 

 the smolts had nearly all left — the pond being now required for the fry hatched this 

 spring, as they are leaving the hatching-boxes in thousands, and will soon require to 

 be fed— we promised ourselves a great treat, as we were anxious to see what the pond 

 contained, after so many thousands had left it both this spriug and last. The pond is 

 emptied by opening a pipe which is placed at the deepest corner, which pipe is taken 

 under ground to within a few yards of the river, which was the height of the Tay in 

 relation to this pipe on Saturday last, the water being discharged on a smooth grassy 

 bank. A wire riddle was put into the centre of the flow, supported on both sides with 

 turf, which caused the water to spread on either side, and sent it thinly and wide-spread 

 over the grass, by which means every fish that left the pond could be seen and counted, 



* • Bulletin de la Societe Vaudoise des Sciences Naturelles,' Tome iv. Bulletin 

 No. 56. 1855. 



