The Concepts of the Calculus. By Carl B. Boyer 346 pages. Columbia University Press, New York. $3.00. - Chemistry in Relation to Biology and Medicine with Especial Reference to Insulin and Other Hormones. By John Jacob Abel. 79 pages. The Williams and Wilkins Co., Baltimore, Md.

doi:10.1086/286580

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The Concepts of the Calculus. By Carl B. Boyer 346 pages. Columbia University Press, New York. $3.75. - The Scientist in Action. A Scientific Study of His Methods. By William H. George 354 pages. Emerson Books, Inc., New York. $3.00. - Crystalline Enzymes. The Chemistry of Pepsin, Trypsin and Bacteriophage. By John H. Northrop 176 pages. Columbia University Press, New York. $3.00. - Chemistry in Relation to Biology and Medicine with Especial Reference to Insulin and Other Hormones. By John Jacob Abel. 79 pages. The Williams and Wilkins Co., Baltimore, Md.

Volume 6, Issue 3
DOI: https://doi.org/10.1086/286580

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The Concepts of the Calculus. By Carl B. Boyer 346 pages. Columbia University Press, New York. $3.75. - The Scientist in Action. A Scientific Study of His Methods. By William H. George 354 pages. Emerson Books, Inc., New York. $3.00. - Crystalline Enzymes. The Chemistry of Pepsin, Trypsin and Bacteriophage. By John H. Northrop 176 pages. Columbia University Press, New York. $3.00. - Chemistry in Relation to Biology and Medicine with Especial Reference to Insulin and Other Hormones. By John Jacob Abel. 79 pages. The Williams and Wilkins Co., Baltimore, Md.

Volume 6, Issue 3
DOI: https://doi.org/10.1086/286580

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

The Concepts of the Calculus. By Carl B. Boyer 346 pages. Columbia University Press, New York. $3.75. - The Scientist in Action. A Scientific Study of His Methods. By William H. George 354 pages. Emerson Books, Inc., New York. $3.00. - Crystalline Enzymes. The Chemistry of Pepsin, Trypsin and Bacteriophage. By John H. Northrop 176 pages. Columbia University Press, New York. $3.00. - Chemistry in Relation to Biology and Medicine with Especial Reference to Insulin and Other Hormones. By John Jacob Abel. 79 pages. The Williams and Wilkins Co., Baltimore, Md.

Volume 6, Issue 3
DOI: https://doi.org/10.1086/286580

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