On Stocking Rivers, Streams, Lakes, Ponds And Reservoirs With Salmonidae

THE last edition of the pamphlet on Stocking has been out of print for solne months, while this issue has been delayed through the pressure hf other work, and the necessity of practically rewriting the pamphlet to bring it up to date. The first edition had to beg the whole question of modern fish-culture, the fourth edition finds artificial Stocking very generally adopted, and trout farins established in inany places in England and Scotland as purely coillmercial ventures, thriving both fishculturally and financially. The public, at least the angling portion thereof, is already very much up to date on the subbet, the size and colour of eggs, the length and shape of yearlings or two-s ear-olds, are questions on which it holds a very decided opinion, nor is it any longer necessary to point out, as in the first edition of this pamphlet, the gain to be derived from stocking neglected pieces of water. he public wants to know what each pond, lake, or mile of stream should yield to the rod annually, and what species, kind, and description of 5sh will give the best sport. And the public is right, because when once the capacity-I might say the trout-bearing capacity-of any given piece of water is known, the trouble and cost of cultivation ean easily be adjusted to produce the desired results, whether for profit or sport. I use the word cultivation advisedly, because many still believe . that they have only to purchase a large number of two-year-olds, and that then everything necessary has been done. Alas from a troutfarmers point of view, there never was a greater mistake. . Of course, in the case of a new reservoir, like the Lake Vyrnwy, the lately completed reservoir for Liverpool, it is onlynecessary to plant a sufficient number of twoyear-olds, or their equivalent in yearlings or in fry, and the desired result is produced but in the case of ponds which have existed from time immemorial, and in the case of streams, the pre-existing conditions control not only the size of trout required for the Stocking, but the mode of cultivation to be followed to enforce successf l results., To enable the reader more easily to - under-stand the pra. ctica1 rules which govern the successful cultivation of trout in ponds, lakes, and streams, it mill be convenient first to consider the the cost, manner of production, and uses of Ova, fry, yearlings, and two-year-olds next in order the various conditions under which. each can be most profitably used and finally, how any given of water can be cultivated so as to yield conditions favourable to one or other mode of Stocking, and the management necessary to command the best possible results. Its Production, Incubation, Apwopriute Employment, and Cost. THE PRODUCT O I F O O N VA .-Most anglers would ask, What can be said of the production of Ova why not net the spawning grounds But a very great deal can. be written on the production of Ova, and much that is new. It is all very well to net the spawning grounds...