Lynde, Carleton John, b. 1872, Gilbert, Alfred C. (Alfred Carlton), 1884-1961 · New Haven, Conn. : A.C. Gilbert Co. · leaf 54
to rise. He can then be turned upside down andback again. You can repeat with the boy lying down. FUN BY DAY OR NIGHT WITH TWO MIRRORSExperiment No. 41. Magic money. Stand the two mirrors vertically on the table sidewise to a good light and place a coin between them. Look over each mirror in turn… … 52 GILBERT BOY ENGINEERING
Light · Scientific recreations
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