Report of the Commissioner for the year ending June 30, 1899 . d 1 pond for carp. In constructing the trout ponds several minor improvements weremade. In addition to providing the spawning-ponds with raceways 4feet wide by 20 feet long by 1 foot deep, a receiver 2 feet by 4 feet by 2feet was built at the foot of each pond between the guard-screens andthe dam-boards, over which was set a grating in the space where thebottom was cut away. In this receiver excrement and other foul mattersettles after passing from the pond through the guard-screen, and beforewashing over the dam-board into the rac
Report of the Commissioner for the year ending June 30, 1899 . d 1 pond for carp. In constructing the trout ponds several minor improvements weremade. In addition to providing the spawning-ponds with raceways 4feet wide by 20 feet long by 1 foot deep, a receiver 2 feet by 4 feet by 2feet was built at the foot of each pond between the guard-screens andthe dam-boards, over which was set a grating in the space where thebottom was cut away. In this receiver excrement and other foul mattersettles after passing from the pond through the guard-screen, and beforewashing over the dam-board into the raceway leading to the next pondbelow. This receiver is connected with a large sewer or waste-pipe of8-inch terra cotta, which is closed at its mouth by a sliding gate arrangedso that it can be drawn out to Hush and clean the receiver and pond;by this means all foul matter is carried off through the flush-pipewithout passing into the next pond. Report U. S. F. C 1899. (To face page LXVI.) Plate XI < HX m o XI CD > 9 T) o o V) IO 73 > om. REPORT OF COMMISSIONER OF FISH AND FISHERIES. LXVII The ponds were built with plank sides and earth bottoms, all timbersused in the construction being of the best white oak, thoroughly soakedin coal tar. In the lower corner of each pond was placed an outletpipe constructed of heavy oak timber, in the form of a letter L, theshort stem forming the standpipe in the corner of the pond. Aroundthis was constructed a crib with guard-screens in front, and set in areceiving-trough at the bottom of the pond. The ponds along TateRun are protected against the ravages of high water by piling and stonewalls from 6 to 7 feet high, running parallel to the ends of the this protecting wall and the end wall of the pond is a spaceof 12 feet filled with earth, forming a strong embankment. The trout ponds are located on the north side of Tate Run and aresupplied with water from the spring. Those for the bass and crappieare on the south side and r
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Keywords: ., bookauthorunitedstatescomission, bookcentury1900, bookdecade1900
