THE SCIENTIFIC AMERICAN ENCYCLOPEDIA OF FORMULAS. Edited by Albert A. Hopkins. Prev. pub. as The Standard American encyclopedia of formulas. Partly based on the 28th ed. of Scientific American Cyclopedia of receipts, notes, and queries.
THE SCIENTIFIC AMERICAN ENCYCLOPEDIA OF FORMULAS. Edited by Albert A. Hopkins. Prev. pub. as The Standard American encyclopedia of formulas. Partly based on the 28th ed. of Scientific American Cyclopedia of receipts, notes, and queries. © 15Nov32; A58197. Grosset & Dunlap, Inc. (PCW); 1Mar60; R252996.
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