Chapter VI: Acids. Chapter VII.--Preparation of Metals and

Metalloids. Chapter VIII.--Special Preparations. Index.

_The Journal of the Faraday Society._--"This book cannot be too
strongly recommended."
_Educational News._--"Most valuable."
_The Lancet._--"The true educational method is set forth in this
little work."
_Journal of Education._--"It is useful both to teacher and to pupil."

EXERCISES IN PHYSICAL CHEMISTRY. By W. A ROTH, Ph.D., etc., Late Professor of Chemistry in the University of Greifswald. Translated for the use of Students by A. T. CAMERON, M.A., B.Sc., of the University of Toronto. Price _6s._ net. Fully Illustrated.

CONTENTS:--Chapter I.--Introductory. Chapter II.--The
Determination of Density. Chapter III.--Determination of
Molecular Weights in Solutions. Chapter IV.--Thermo-Chemistry.
Chapter V.--The Determination of Optical Constants. Chapter
VI.--The Thermostat. Chapter VII.--Chemical Statics and
Dynamics. ELECTRO-CHEMISTRY: Chapter VIII.--Foundations. Chapter
IX.--Electrical Conductivity. Chapter X.--Faraday's Law.
Transport Numbers. Chapter XI.--Measurement of Differences of
Potential. Chapter XII.--Electro-statics. Appendix. Index. SMALL
TABLES IN THE TEXT: Molecular elevation of the boiling point and
depression of the freezing point. Heat of combustion per gram at
constant volume. Spectrum lines for optical measurements. Atomic
refraction. Conductivities of some standard solutions. Dielectric
constants.