Perkins, Henry, 1803-1889, publisher., Haswell, Barrington, and Haswell, printer., McManus-Young Collection (Library of Congress) · Philadelphia : H. Perkins, 134 Chestnut Street, MDCCCXXXVIII [1838] · leaf 138
116 FIRE, WATER, AND AIR. THE ASCENDING SNAKE. To construct this pretty little pneumatic toy, take a square piece of stiff card, or sheet copper or brass, about two and a-half Fig. 2. Fig. 1. or three inches in diameter, and cut it out … aS head to tail is six or seven inches, as in fig. 2. Next, provide a slender piece of wood on a stand, and fix a | | sharp needle atits summit; push the rod up through the <_~ __ spiral, and let the end of the spiral rest upon the sum- mit of theneedle. Now place the apparatus as nearly as…
Juvenile literature · Scientific recreations
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