File:Hardwicke's science-gossip - an illustrated medium of interchange and gossip for students and lovers of nature (1886) (14582653990).jpg

Identifier: hardwickesscienc22cook (find matches)
Title: Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature
Year: 1886 (1880s)
Authors: Cooke, M. C. (Mordecai Cubitt), b. 1825 Taylor, J. E. (John Ellor), 1837-1895
Subjects: Science Natural history
Publisher: London : Robert Hardwicke
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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perfectly straight line ; after thisis done we proceed to make the four posts, E. These posts should be sixteen inches and a halflong, and one inch and a half square, the end forthe bottom must be cut to fit into the hole tightly,a.- at F. The best way to do this part of the workis to saw to the depth of one-quarter of an inch intothe four sides of each post, at the right distance from nearest wood-turner, and have him turn off the endof each piece, leaving it one inch and a quarterthick, as at N, and then with a carpenters brace,and a one and a quarter-inch bit, we can bore fourcircular holes, as in fig. 9, instead of cutting themsquare ; this greatly simplifies the work, but it is notas strong as when the square holes are used. Getsome good carpenters glue, and, after putting somein the holes, while still hot, drive your posts well inwith a wooden hammer, and fasten them through thebottom of the tank with a one and a half inch screw.The pieces now being all in place, it will perhaps
Text Appearing After Image:
Fig. 9.—Bottom of Aquarium.

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