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A double discovery : the square of the circle
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Circles & Squares: Books One and Two
Visual Materials
Two drawing instruction books, by Marguerite Marquart and Jean T. Mitchell, published by World Book Company, Yonkers-on-Hudson, New York, each with numerous exercises, lessons, and picture studes, illustrated with lithograph line drawings. These two books are designed to be used consecutively. Book One "is intended to help [the] ten- and eleven-year olds with their first difficulties in drawing three-dimensional forms, to aid the older students in 'thinking through' their problems in graphic representation." Book Two "is extended to squares and to true perspective for rectangular objects and their interrelation in groups." Book One is 78 pages in length; Book Two has 80 pages. "Mabel Spofford" is written in ms. on the front cover of each book.
ephKAEE
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The circle in the square : the story of a new battle on old fields
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The double helix : a personal account of the discovery of the structure of DNA
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