CONTENTS.

CHAPTER PAGE
I.— Air 7-21
Normal Air.—Contamination of the Air.—Test for Carbonic Acid in Air.—Diseases caused by Foul Air.—Composition of Sewer-Air.—Ground Air.—Ventilation.—Smoky Chimneys.
II.— Drainage 21-66
Privy-Vaults.—Tanks.—Pails.—Earth-Closets.—Water-Carriage.—Plumbing Regulations of New York City Board of Health.—Explanatory Remarks.—Drainage of Country Houses.—Subsoil Drainage.—Defective Drainage.—Sources of Bad Odors.—Examination of House-Drainage.—Peppermint Test.—Summary.—Exclusion of Ground-Air.
III.— Disinfection 66-73
Directions issued by the National Board of Health.—Comments.—Precautions in Special Diseases.
IV.— Food 73-85
Adulterations, and Methods of detecting them.
V.— Water 86-90
Pollution of Water.—Filters.—Tests for Impurities.—Precautions.
APPENDIX A.—Disinfectants 91-99
APPENDIX B.—Plumbers’ Materials 100-102
INDEX 103