The Edinburgh new dispensatory : Containing I. The elements of pharmaceutical chemistry. II. The materia medica; or, The natural, pharmaceutical and medical history, of the substances employed in medicine. III. The pharmaceutical preparations and compositions. Including translations of the latest editions of the London, Edinburgh, and Dublin pharmacopoeias / by Andrew Duncan.

  • Duncan Andrew, 1773-1832.
Date:
1813
Catalogue details

Licence: Public Domain Mark

Credit: The Edinburgh new dispensatory : Containing I. The elements of pharmaceutical chemistry. II. The materia medica; or, The natural, pharmaceutical and medical history, of the substances employed in medicine. III. The pharmaceutical preparations and compositions. Including translations of the latest editions of the London, Edinburgh, and Dublin pharmacopoeias / by Andrew Duncan. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    d. It unites bodies in definite proportions ; and when bo- dies combine in more proportions than one, these are multiples of each other. e. It unites a first proportion of one body with another, more strongly than a second ; a second than a third, and so on ; and hence it is in the inverse ratio of sa- turation, and seems to increase with the mass. f It is influenced by cohesion, specific gravity, elasticity and temperature. g. It is often accompanied by a change of temperature. h. Substances, chemically combined, acquire new proper- ties ; i. and cannot be separated by mechanical means. k. The action produced by different affinities, existing in one substance, is called Resulting Affinity. 20. Affinity is a. simple, when two bodies unite, in consequence of their mutual attraction, whether these bodies be themselves simple or compound, and even although, in the latter case, it be attended with decomposition. b. compound, when there is more than one new combina- tion, and when the new arrangement would not have taken place, in consequence of the attractions tending to produce either combination singly. 21. The attractions which tend to preserve the original ar- rangement of bodies presented to each other, are denominated Quiescent attractions; those which tend to destroy the origi- nal, and to form anew arrangement, are termed Divellent at- tractions. It is evident, that no new arrangement can take place, unless the divellent be more powerful than the quiescent at- tractions. sir h. davy’s classification of simple bodies, WITH THEIR NUMBERS *. 22. A. Etherial substances : Light. Caloric. Electricity. Magnetism. ' * These numbers are the results of experiments, and indicate merely the re- lative weights in which bodies combine, and are independent of the speculations on the atomic doctrines,