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THE first hundred pages of this book are occupied with the differentiation and integration of simple algebraic functions, including easy applications to geometry, and here and there a mechanical problem is set amongst the examples.Differential and Integral Calculus for Technical Schools and Colleges.By P. A. Lambert, Assistant-Professor of Mathematics, Lehigh University. Pp. x + 245. (New York: The Macmillan Company. London: Macmillan and Co., Ltd., 1898.)