File:The complete aquarium book; the care and breeding of goldfish and tropical fishes (1936) (20050621793).jpg

Title: The complete aquarium book; the care and breeding of goldfish and tropical fishes
Identifier: completeaquarium00inne (find matches)
Year: 1936 (1930s)
Authors: Innes, William T. (William Thornton), 1874-1969
Subjects: Aquariums; Goldfish
Publisher: New York, Halcyon house
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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Text Appearing Before Image:
114 CONSTRUCTION security. No wooden forms are needed unless it is decided to make the ledge for holding earth for bog plants, which, by the way, is an effort that will well repay in added beauty to the pond. Concrete mixture should be one part cement, two of sand and four of coarse gravel or small broken stone. Finishing coat a half inch thick, one part cement, two of sand. The concrete pouring and later the fin- ishing coat should, if possible, each be carried on as continuous jobs. There is apt to be a weakness at points where the work is halted from one day to the next, especially where reinforcement is not used. Tamp concrete well. A pool of this style if well constructed will resist frost. In winter fill concrete pools to ground level to counteract freezing pressure from the outside. The inclusion of a concrete water lily container, as well as the ring of soil around it for other aquatic plants, is optional. If square, it will need board forms. If round, galvanized iron circles not joined at ends, the outside pieces tied around and the inside ones braced across. The lily pot should be 15 to 20 inches wide and about 8 to 10 inches deep. Topping off edges at ground level with a coping of flat, natural stones set in cement is quite a pleasing addition.
Text Appearing After Image:
Fig. 91. Simple Form of Concrete Pool This requires no wooden forms unless ledge is made. Hardy water lily flowers float at the surface as indicated. This type of pool is well suited to hardy water lilies. If they are used, the top of soil should be about six inches below the freezing line. Arrowheads and most bog plants in the ledge of soil survive freezing. Ground-level pools have charming possibilities for artistic planting outside the edges. Their principal disadvantage is that the fishes are open to the attacks of snakes, frogs and rats if these pests are present.

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