An inaugural botanico-medical dissertation, on the Phytolacca decandra of Linnaeus / by Benjamin Shultz, of Pennsylvania, member of the Philadelphia Medical Society.

  • Shultz, Benjamin.
Date:
1795
Catalogue details

Licence: Public Domain Mark

Credit: An inaugural botanico-medical dissertation, on the Phytolacca decandra of Linnaeus / by Benjamin Shultz, of Pennsylvania, member of the Philadelphia Medical Society. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    They would make a mofl beautiful purple die, if forae method could be found for iixing the colour. In attempting to fix its colour, I made the fol- lowing experiments. Experiment 1. I diffolved between two and three ounces of alum in half a pint of boiling water : in this folu- tion I immerfed fome pieces of cotton, linen and woollen cloth for fome time; and after paffmg them through the juice, I dried them in the fun. But on being thoroughly wafhed, they faded. Experiment II. I made different mixtures of the juice with the nitrous acid : in each of thefe 1 dipped fome pieces of the above-mentioned cloths. But though 1 proceeded in the fame manner as before, the ifTue was no better, for it feemingly had a greater tendency to deflroy the colour than to fix it. cafe feems to be in favour of the negative. A gentleman in this city accidentally ftained a piece of cotton with the juice. This he attempted to wafh off by a ftrong impregnation of foap and water; but the ftain after turning from a purple red, to a deep blue colour, remained in the piece as long as it lafled. EXPE-