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London: C. J. CLAY AND SONS, CAMBRIDGE UNIVERSITY PRESS WAREHOUSE,

AVE MARIA LANE.

Cambridge: DEIGHTON, BELL, AND CO.

Leipzig: F. A. BROCKHAUS.

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M. Muu

PATTISON MUIR, M.A.

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FELLOW AND PRÆLECTOR IN CHEMISTRY OF GONVILLE AND

CAIUS COLLEGE,

AND

DOUGLAS CARNEGIE, B.A.

DEMONSTRATOR IN CHEMISTRY AND FORMERLY SCHOLAR OF

GONVILLE AND CAIUS COLLEGE,

CAMBRIDGE.

A COMPANION-VOLUME TO PATTison MUIR AND SLATER'S

ELEMENTARY CHEMISTRY.

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PREFACE.

This book forms one part of a course of elementary chemistry; the other part is contained in the companionvolume entitled Elementary Chemistry. The two books are intended to be used together, the one being complementary to the other.

The third part of this book deals with subjects which are only touched on in the companion-volume; this part should be used in conjunction with portions of the Principles of Chemistry by one of the authors of the present book; references to original papers to be consulted are also given in this part.

The aim of the authors has been to arrange a progressive course of practical chemistry, in which as the experiments become more difficult the reasoning becomes more close and accurate. The arrangement of the course and the selection of the experiments are the outcome of experience gained in teaching chemistry for many years. Most of the experiments described can be performed with the apparatus to be found in every moderately wellfurnished laboratory.

To encumber a new book on practical chemistry with the details of qualitative and quantitative analysis-subjects treated so fully in numberless manuals—appeared to the authors to be unwise. Many of the experiments in the

the

earlier chapters of this book indirectly teach the principles of qualitative analysis, but the authors' plan has obliged them to assume that at certain stages of his progress student has become acquainted with the ordinary processes of qualitative and quantitative analysis.

Appendices are added, containing (1) the outlines of experiments bearing on the work done in Part I., (2) tables which may help the student in performing the analytical parts of the easier experiments, (3) numerical data frequently used in the laboratory.

M. M. PATTISON MUIR.
DOUGLAS CARNEGIE.

CAMBRIDGE, October, 1887.

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