The threshold of science : a variety of simple and amusing experiments illustrating some of the chief physical and chemical properties of surrounding objects, and the effects upon them of light and heat / by C.R. Alder Wright.
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The threshold of science : a variety of simple and amusing experiments illustrating some of the chief physical and chemical properties of surrounding objects, and the effects upon them of light and heat / by C.R. Alder Wright. Credit: Wellcome Collection. Public Domain Mark