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 75
Leff 4 z iG 3 —s_ ity 1 GP STSE ANID iti AT, FLASHES OF LIGHT UPON REVOLVING WHEELS. … with the simple apparatus for causing them to turn round, used in the construction of a toy windmill. Next fill a basin with water, and provide a few small pieces of phosphuret of lime: darken the room, hold the discs over the basin, and turn them round; let the phosphuret of lime be put into the…
Juvenile literature · Scientific recreations
Library of Congress, Rare Book and Special Collections Division · No known copyright restrictions. Free to use for anything.
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