Excerpt from Scientific Amusements

Young people of both sexes, and persons of all ages who have leisure and a taste for that which is ingenious as well as instructive and amusing, may be commended to this remarkable interesting collection of experiments, nearly all of which can be readily performed by an unskilled person who will carefully follow out the directions given. It is surprising how near we are to the most fundamental principles of science when we perform some of the simplest operations. The act of balancing oneself on one foot may be made to illustrate most instructively the principle of gravitation and the centre of gravity. The musical (or unmusical, as the case may be) performance of whistling illustrates the power of air in motion, and the effects of vibrating cords (the vocal cords) in a limited space. The toasting of a piece of bread is an example of evaporation of water change of structure owing to heat, and the appearance of a black substance out of a white one by a change in chemical combination. It is so in a multitude of the common occupations of life, and especially in the amusements in which children take so great a delight.

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