A compendium of the anatomy of the human body: intended principally for the use of students (Volume 1).
- Fyfe, Andrew, 1754-1824.
- Date:
- 1810
Licence: Public Domain Mark
Credit: A compendium of the anatomy of the human body: intended principally for the use of students (Volume 1). 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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![twenty-four hours, stirring it now and then with a stick : then set it over a slow fire for half an hour, or until all the pieces are perfectly dissolved ; skim off the froth from the surface, and strain it through a flannel for use. Isinglass and the cuttings of parchment make an ele- gant size for very particular injections ; and those who are not very nice may use the best double size of the shops. Red Size, one pint—Chinese vermillion, two ounces. Yellow. Size, one pint—king's yellow, two ounces and an half. White. Size, one pint—best flake white, three ounces and an half. Blue. Size, one pint—fine blue smalt, six ounces. Green. Size, one pint—levigated crystalized verdi- grise, two ounces—best flake white, levigated gamboge, of each eight scruples. Black. Size, one pint—lamp-black, one ounce. GENERAL OBSERVATIONS. 1. All injections are to be heated to such a degree as not to destroy the texture of the vessels they are intend- ed to fill ; the best criterion of this degree of heat is dipping the finger into the injection. If the finger can bear the heat, the texture of the vessels will not be hurt. 2. All the coloured materials should be as finely levi- gated as possible, before they are mixed with the injec« tion. 3- Great care should be taken lest the oily ones boil over, or bubble ; and th.it the heat be gentle, otherwise the colour will be altered. 4. 1 he) should be constantly stirred, lest the colour- ing materia], which is much heavier than the vehicle, fall to the bottom. 5. The instrument to stir them with should be a wood- en pestle, and there should be one for each colour. 6. A lar^-e tin pafi to contain water, with two or three lesser in it tor the injections, will be found very useful, and prevent all accidents, and the colour from spoiling, when on the fire](https://iiif.wellcomecollection.org/image/b21121278_0022.jp2/full/800%2C/0/default.jpg)