JAMA. 1903;XL(6):384-385. doi:10.1001/jama.1903.02490060038008.
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It is now more than twenty years since the metric system was first indorsed by the American Medical Association. Within that time it has become more or less familiar to the medical public of this country, but its adoption is yet far from being accomplished. It is a difficult thing to supplant old habits, and all the conservatism of human nature comes into active play in such cases as the adoption of a system which not only in its medical, but in almost all other relations of life would require a change in our habitual conceptions and usages. Nevertheless, there are many physicians, though perhaps fewer just now than some years ago, who use this system in their prescription writing. It would be well if the practice were more general. The advantages are obvious, it would put us on the same footing with physicians throughout the greater part of the


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