. Domesticated trout [microform] : how to breed and grow them. Fish culture; Trout; Pisciculture; Truite. HATCHING APPARATUS. 55 stone, slate, pottery, metal, wood with glass lining, glass grilles, and charcoal, or carbonized wood. I think ex- perience will finally reduce the number in general prac- tice to two, "amely, glass grilles and carbonized wood. Wood in its natural state is out of the question, for the fungus that it grows wholly unfits it for hatching. I venture to say that hundreds of thousands of eggs have been destroyed by the fungus coming from wood- en troughs. Metal, wheth
. Domesticated trout [microform] : how to breed and grow them. Fish culture; Trout; Pisciculture; Truite. HATCHING APPARATUS. 55 stone, slate, pottery, metal, wood with glass lining, glass grilles, and charcoal, or carbonized wood. I think ex- perience will finally reduce the number in general prac- tice to two, "amely, glass grilles and carbonized wood. Wood in its natural state is out of the question, for the fungus that it grows wholly unfits it for hatching. I venture to say that hundreds of thousands of eggs have been destroyed by the fungus coming from wood- en troughs. Metal, whether in the form of screens or anything else, will not do, because the absorbing power of trout eggs is so great, that, if placed in con- tact with it, they will in time absorb enough metallic matter to destroy * Slate, pottery, and soapstone answer very well, but are all expensive; and if an expensive article is used, glass grilles, I think, have the preference over everything else. For cleanliness, tidiness, and convenience they are not surpassed by anything. Their expense ii their only objection. Charcoal troughs, on the other hand, are equally as effective as grilles, and infinitely more economical. They are also more accessible, more simple, and more durable. In estimating their comparative merits I should say that the glass grilles are the thing for the rich man's experiments, and the carbonized troughs are the thing for business; I cannot but think that the carbonized troughs will supersede everything else, where trout- * Fourteen trout eggs were placed on a copper-wire screen, in November, 1869, at the Cold Spring Trout Ponds, and in fifty days they had absorbed so much copper that they were of a dark brown tinge, and hard like Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stone, Livings
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherbosto, bookyear1872
