Amateur mechanics ... a book for old and young who like to make things .. (1907)
Popular mechanics magazine, Chicago. [from old catalog] · Chicago, Popular mechanics · leaf 33
jar can be sup-ported in the position shown at B. If themouth of the jar is below the surface of thewater it will stay filled and allow the fishto swim up inside as shown. Some washedpebbles or gravel should be placed on thebottom, and if desired, a few Chinese liliesor other plants m&jjc_be… … Toy Cannon plug, C. Be sure to get hydraulic pipe, ordouble extra heavy, as it is sometimes called,as common gas pipe is entirely too light forthis purpose. Dont have the pipe too long,or the cannon will not make as much noise.Seven or eight inches is about the rightlength for a 1-in. bore. Screw…
Handicraft · Amusements
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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-349-232.webp)
