A manual of qualitative analysis / by Robert Galloway.

  • Galloway, Robert, 1822-1896.
Date:
1858
Catalogue details

Licence: Public Domain Mark

Credit: A manual of qualitative analysis / by Robert Galloway. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    and unless the student is able himself to unite the two— the principles with the practical instruction—he becomes a mere analytical machine. Students who can give their whole time and attention to the study of the science can, if they will, accomplish this; but I have found by ex- perience, that those who can only devote some five or six hours in the week to the acquirement of the science, fail to become intelligent analysts by this system. The system is very difficult, as well as defective: it is so difficult, that those who employ it generally teach one thing, useless in itself, in order that they may teach another: they teach the student first to look for one acid and one base—a limitation which is not adopted in actual practice—solely for the purpose of rendering the course in which they have to look for all the bases and acids less difficult. In the plan I have adopted, the properties of the different members of each group are contrasted by placing them in parallel columns: the advantage of this is, that the student, after he has performed the experiments, is able himself to devise methods for the detection and separation of the different members; it places him, in fact, in the position of a judge who lias to decide some cause after having heard all the