Perkins, Henry, 1803-1889, publisher, Haswell, Barrington, and Haswell, printer, McManus-Young Collection (Library of Congress) DLC · Philadelphia : H. Perkins, 134 Chestnut Street · leaf 143
hen it will be seen that the air is material, and occupies itsown space in the tube, for it will not permit the water to enterit until the finger is removed, when the air will escape, and thewater rise to the same level in the inside as on the outside ofthe tube. BREATHING ANT) SMELLING. Hold the…
Scientific recreations
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