Elements of pharmacy, materia medica, and therapeutics / by William Whitla.

  • Whitla, William, 1851-1933.
Date:
1903
Catalogue details

Licence: In copyright

Credit: Elements of pharmacy, materia medica, and therapeutics / by William Whitla. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

    46/644 (page 42)
    turning it on its own axis in his hands, the cylinder is cut and rounded into globular pills, which, with the last motion, are pushed into the box or tray at the end of the machine. If the operation is successful, and the mass of good consistence, no Fig. 12. further handling will be necessary; but generally the track of the machine will be visible on each pill, and another process is required before the smooth globular form is perfect. The pills are again placed on the dusted slab, and covered with a pill- finisher—which is only a circular shallow boxwood tray, not so deep as the pills—and by a series of rapid rotatory move- ments the traces of the machine are dispelled, and a more spherical and polished appearance is given. (Fig. 12.) If the pills are very soft this cannot be successfully done, but they must be rounded separately between the finger and thumb. Fig- 13- There is another and more convenient method of making pills in small quantities ; it is by means of the graduated tile and a spatula. The ingredients are weighed and placed on the tile—which is of porcelain or wedgewood ware, with very little glaze on its surface.