Chapter I: Front Matter

| between underscores, as in _text_. |
| * Bold-face text in the original document is presented here between |
| equal signs, as in =text=. |
| * Old-English font is presented here by enclosing the text between |
| ~, as in ~text~. |
| * Superscript and subscript are presented as ^{text} and _{text}, |
| respectively. |
| * The oe-ligature is presented as [oe] as in diarrh[oe]a. |
| * Small-caps text in the original document is presented as all-caps |
| here. |
| * The equilibrium arrow in chemical reactions is presented here as |
| <=>. |
| * Footnotes (indicated by [A], [B], etc.) have been moved to |
| directly below the paragraph or table they refer to, references |
| (indicated by [1], [2], etc.) are collected at the end of each |
| chapter. |
| * Greek in the original document has been transcribed as for example|
| [alpha] for individual letters and as [Greek: chloros] for |
| complete words. |
| * Positive and negative ions are presented as for example H^{.} and |
| OH', as in the original document. |
| |
| See additional Transcriber's Notes at the end of this e-text. |
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WORKS OF JOSEPH RACE

PUBLISHED BY JOHN WILEY & SONS, Inc.

=Examination of Milk for Public Health Purposes.=

A practical handbook for those engaged in the chemical and
bacteriological examination of milk for public health purposes. vi
+ 224 pages, 5-1/4 x 8, 4 diagrams. Cloth, $1.75 net.

=Chlorination of Water.=

In this book the various aspects and methods of chlorination are
discussed with a view to stimulating research work in this field of
science. viii + 158 pages, 5-1/4 x 8, 12 figures and 16 diagrams.
Cloth, $1.50 net.

Chlorination of Water

BY

JOSEPH RACE, F.I.C.

_City Bacteriologist and Chemist, Ottawa; Capt. Canadian Army Hydrological Corps; Associate Member of Committee on Water Supplies, American Public Health Association; Member of Committee on Water Standards and Standard Methods of Analysis, American Water Works Association; Chairman of Committee on Standard Methods of Analysis, Canadian Public Health Association_

_FIRST EDITION_

NEW YORK

JOHN WILEY & SONS, INC.

LONDON: CHAPMAN & HALL, LIMITED

1918

Copyright, 1918

BY

JOSEPH RACE, F.I.C.

PRESS OF

BRAUNWORTH & CO.

BOOK MANUFACTURERS

BROOKLYN, N. Y.

DEDICATED

TO

~Sir Alexander Houston, K.B.E., D.Sc., M.B., C.M.~