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The American calls attention to the danger attending the wearing of adulterated leather. A large amount of cheap leather is weighted with glucose and barium, especially the latter, so that when the weight test is applied such adulterated leather may pass as first-quality material. Leather so treated, however, has the peculiar quality of absorbing moisture freely and retaining it to an extreme degree. The result is that a shoe made of this chemically-treated material is in actuality never dry. Even in the driest weather the perspiration of the feet is sufficient to render the footwear dangerous, as such natural moisture collects on the inner sole. Day after day, it seems, some new point is brought up concerning which commercial enterprise makes it necessary for the physician to be on his guard.
ANOTHER INSANITARY CONDITION.. JAMA. 1905;XLV(6):406. doi:10.1001/jama.1905.02510060042010
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