author of The Hindu-Arabic Numerals with David Eugene Smith (1911), Robert of Chester's Latin Translation of the Algebra of Al-Khowarizmi (1915), and Unified Mathematics with Harry Yandell Benedict and John William Calhoun (1913).

* (with David Eugene Smith). Boston: Ginn and Company, 1911.
* , with an Introduction, Critical Notes and an English Version. New York: Macmillan Co., 1915.
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