278 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



Lake trout. — Mr. Dubard, of Vilars-siir-Oucbe, likewise requested 

 a sliipment of trout eggs. He wrote : 



"I am encouraged to make this request of you by a precedent which 

 assures me of abnost certain success. Last year I bought from differ- 

 ent persons 3,000 impregnated eggs, nearly all of which were afterwards 

 hatched. After keeping them in the hatching ajiparatus for a fortnight 

 I set these little trout free in a brook of running Avater 20 meters [22 

 yards, nearly] long by l.J meters [5 feet] wide, and there I fed them up 

 to the age of three months on chopped tish without appreciable loss. 

 At this time these young fish had attained on the average 35 millimeters 

 [1.4 inch nearly] in length. Then, thinkingthatthere was nothing Inrther 

 to fear, I set them at liberty in my sheet of water which is fed by many 

 good-sized springs. I ought to say that since then I have seen but 

 little of them, but this is explained because of the depth of the basin, 

 its extent, and the quantity of weeds which cover the bottom. If it is 

 possible, I would prefer to receive some eggs of lake trout, which grows, 

 as I have heard it remarked, much more rapidly than the other species." 

 [Bulletin, March, 1884, p. 290.] 



Lake teout and California salmon. — Mr. Focet wrote from 

 Bernay : 



"In reply to your letter of January 31, 1884, inquiring of me the re- 

 sults which I obtained from some shipments of salmon eggs which your 

 society was pleased to send to me last year, I will state that the result 

 was generally good. In fact, from the incubation of about 12,000 eggs 

 of different kinds of salmon, I obtained about 10,000 fry, which have, 

 on the whole, done well during the four months in which I have fed 

 them on grated cooked meat, frog spawn, and codfish eggs. But I was 

 obliged at the end of this period, being no longer able to feed them or 

 to keep them in my apparatus, to set them free in the streams of Eisle 

 and Charentonne. I have taken good care of some specimens in my 

 reservoirs, but only a few, as I have trouble in securing theai from two 

 great dangers, 1st, the variation in the depth and condition of the water, 

 and, 2d, the voracity of water-rats and otters. 



" In brief, the reports on fish culture, which I have made for ten 

 years have been until now, and will be for the future till further orders, 

 the same, as far as I can put in execution industrial fish culture, that 

 is to say, to so care for the fish that it can be turned over for consump- 

 tion after three or four years of living in a closed basin. However, my 

 labors have not been without good results I have restocked two water- 

 courses of a length of at least 24 kilometers [about 11 miles]. Trout 

 there are so abundant that recently, because of an accident which hap- 

 pened to the reservoirs of the gas-works, the ammoniac water killed 

 more than fifteen hundred trout in the course of no more than 2 kilo- 

 meters [1:^ miles] in the waters of the Charentonne. A fine of more 

 than 1,500 francs [$300] was imposed on the gas company. You see 



