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When a book passes to its eighth edition, it would seem that critics should be silent and recognize that the public had already passed judgment upon the book. The author was a member of the Revision Committee which revised the last Pharmacopeia, and he has therefore made this work to correspond with the changes. He has, however, admitted the new synthetical products. In regard to the decimal system the author says:
"As the new Pharmacopeia has employed the metric system in its weights and measures, it becomes necessary for all systematic works treating of materia medica to follow its example. That my readers, unacquainted with the metric system, may have no difficulty, I have added in a brief appendix a tabular statement of the equivalents of weights and measures from one Troy ounce down."
A more striking way of making the decimal system unpopular could not have been chosen. What
A Practical Treatise on Materia Medica and Therapeutics.. JAMA. 1893;XXI(24):896. doi:10.1001/jama.1893.02420760026004