Chemistry : general, medical, and pharmaceutical including the chemistry of the British Pharmacopœia a manual on the general principles of the science, and their applications in medicine and pharmacy / by John Attfield.

  • Attfield, John, 1835-1911.
Date:
1881
Catalogue details

Licence: Public Domain Mark

Credit: Chemistry : general, medical, and pharmaceutical including the chemistry of the British Pharmacopœia a manual on the general principles of the science, and their applications in medicine and pharmacy / by John Attfield. Source: Wellcome Collection.

    10/850
    acidulous radicals alphabetically. By this plan the more important facts and principles are repeatedly brought utfder consideration, the points of view, however, differing according as interest is concentrated on physical, syn- thetical, analytical, or quantitative properties. This arrangement of matter was adopted, also, partly from the belief that the separate and general truths of chemistry never enter the mind in the order of any scientific classi- fication at present possible. In the current state of chemical knowledge, consistency in the methodical arrangement even of elements can only be carried out in one direction, and is necessarily accompanied by incon- sistencies in other directions—a result most perplexing to learners, and hence totally subversive of the chief advan- tage of classification. For this reason the writer has preferred to lead up to, rather than follow scientific classification^—^has allowed analogies and afiinities to suggest, rather than be suggested by, classification. Among the acidulous radicals, especially, any known sys- tem of classification would have given nndue prominence to one set of relations, and undeserved obscurity to others. Then, by separating more important from less important matter, instruction is adapted to the wants of gentlemen whose opportunities of studying chemistry vary greatly, and are unavoidably insufficient to enable them to gain a knowledge of the detail of the science. One great advan- tage of the mode of treatment is that difficulties of nomen- clature, notation, chemical constitution, and even those arising from conventionality of language, are explained as they arise, instead of being massed under the head of Introductory Chapters/' Preliminary Considerations, or General Remarks,'^ which are not unfrequently too difficult to be understood by a beginner, too voluminous