Our boys; what they can do and how to do it (1893)
Stoddart, William, [from old catalog] comp · New York, Hunt & Eaton; Cincinnati, Cranston & Curts · leaf 189
rike the edge of the shingle a sharp blow.Why do you not knock it off ? Cohesion is a force without which there would be no suchthing as ten^a firma—firm earth. It holds together the particlesof every solid substance. Heat is opposed to cohesion. Themorning sun melts the frost and then converts it… … CRYSTALS OF SNOW. upon a piece of glass a solution of salt or alum, then heat theglass and see the crystals form immediately. View them eventhrough a common microscope and notice how many beautifulforms you will discover. Adhesion holds together the particles of different substances.When a lump of…
Handicraft · Amusements · Sports
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