The boy's own book of indoor games and recreations : a popular encyclopædia for boys (1890)
Stables, Gordon, 1840-1910, Hutchison, George Andrew, 1841-1913 · Philadelphia : J.B. Lippincott · leaf 112
AND HOW TO MAKE THEM. 107 with a slot in front. The back or one of the sides should have a door in it, toget at the machinery, should it at any time require attending to. You must now make two zinc tanks, the top one air-tight, to occupy the wholeof the upper space, the other also air-tight at… … Fig. 12. of it, and communication with it by a small hole, as shown in e. Fig. 13, about aquarter of an inch in diameter, and having also a small pipe passing from it to theouter air through the large tank. This pipe is not shown in the figure, but it issoldered to the top and bottom of the tank…
Games · Amusements
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