Modern dental materia medica, pharmacology and therapeutics : including the practical application of drugs and remedies in the treatment of disease / by J.P. Buckley.

  • Buckley, J. P. (John Peter), 1873-1942.
Date:
1911
Catalogue details

Licence: In copyright

Credit: Modern dental materia medica, pharmacology and therapeutics : including the practical application of drugs and remedies in the treatment of disease / by J.P. Buckley. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    transformed into wood {lignum) and is covered with bark {cortex). The outer layers of the older bark are always corky, and a secondary bark develops inside of this which is called liber. The leaves {folia) are stem-appendages, regularly arranged upon the stem, and consist of expansions of its tissues. Buds may be con- sidered as rudimentary stems, with rudimentary leaves compactly ar- ranged upon them. The flower {flos) is a special modification of the leaves. It con- sists of the calyx (usually green parts called sepals) and a corolla. The latter is made up of showy leaflets (petals) and the inconspicuous, but important, male and female elements called stamens and pistil, respectively. The stamens bear the fertilizing element in the form of granules, termed pollen. The pistil consists of the ovary, which develops the seed {semen), and the style and stigma, which serve to receive the pollen. After fertilization takes place, the ovary develops into the fruit {fructus); this may also involve neighboring parts, es- pecially the top of the stem, as in the apple and strawberry. The fruit consists of the outer portion, pericarp, and the seeds. The latter contains the embryo and nutriment material, and is protected by a more or less hard shell. Certain organic drugs consist of the coagu- lated juices of the plants and show no structure (opium, etc.). PHARMACEUTIC PREPARATIONS. Pharmaceutic preparations are those preparations made by the pharmacists, the formula being given for their preparation in the United States Pharmacopeia; and nearly one-half of the articles of the U. S. P. are pharmaceutic. The pharmaceutic preparations may be classified as follows: I. The solutions. II. The mixtures. III. Products by extraction. IV. Mixtures of solids. V. Preparations for external use. These groups are subdivided into a number of classes, each class having a distinct Latin title which officially designates its members, or individual preparations, and by which they are alphabetically arranged in the U. S. P. Besides the Latin and English titles, each class is also known by an English name and various synonyms. The stu- dent will gradually become acquainted with the -various classes and names of each by carefully studying the following classification: