. A chapter on the artificial propagation of the brook . J^iff. 3. Figure 1. A A, Hatching troughs. B, Supply trough. C, Spigot, a, Tail screen, b, Aerating screen, c, Water gate. d, Supply pipe. e, Surplus water overftow. f, Waste pipe water trough. g g, Waste pipe to hatching troughs, h, Slash board. Figure 2. Sections of troughs, A A, .set tandem. Figure 3. Water gate. Equipment. Figure 1 shows the arrangement of troughs in pairs, side by side. Figure 2 shows how the troughs could be arranged so that the second trough would utilize the same water as the first one. In large hatcheri
. A chapter on the artificial propagation of the brook . J^iff. 3. Figure 1. A A, Hatching troughs. B, Supply trough. C, Spigot, a, Tail screen, b, Aerating screen, c, Water gate. d, Supply pipe. e, Surplus water overftow. f, Waste pipe water trough. g g, Waste pipe to hatching troughs, h, Slash board. Figure 2. Sections of troughs, A A, .set tandem. Figure 3. Water gate. Equipment. Figure 1 shows the arrangement of troughs in pairs, side by side. Figure 2 shows how the troughs could be arranged so that the second trough would utilize the same water as the first one. In large hatcheries the troughs are frequently set in pairs, each pair emptying into a second pair to economize water and space. These troughs can be made of any good sound lumber; pine is preferable. If there is to be ]:)ut one or two troughs, the supply trough, B, can be made out of half a kerosene barrel, l^urned out, 12. 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 Titcomb, John W. (John Wheelock), 1860-1932. [Montpelier]
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Keywords: ., bookcentury1900, bookcontributorthe, bookdecade1910, bookyear1915
