By WM. PAUL GERHARD, Civil Engineer.

One 12mo volume. Cloth, Price, $2.50.

CONTENTS.

CHAPTERI.—Fresh Air versus Sewer Gas.
II.—Necessity of Ventilation in Rooms containing “Modern Conveniences, and Defective Arrangements of Plumbing Fixtures.” Figs. 1 to 18.
III.—Soil and Waste Pipe System as usually found in Dwellings. Figs. 19 to 31.
IV.—Traps and Systems of Trapping. Figs 32 to 38.
V.—Details of Traps. Figs. 39 to 159.
VI.—Insecurity of Common Water Seal Traps. Figs. 160 to 164.
VII.—Defects in the Plumbing Work of Dwellings.
VIII.—Cellar Drains and Drainage of Cellars. Figs. 165 to 169.
IX.—Usual Defects of House Drains, Sewer Connections, Privies, Vaults and Cesspools. Figs. 170 to 181.
X.—System of Plumbing as it should be inside a Dwelling. Figs. 182 to 206.
XI.—Plumbing Fixtures. Figs. 207 to 262.
XII.—Removal and Disposal of Household Wastes. Figs. 263 to 282.

NOTICES OF THE PRESS.

Rarely do we find between the covers of one small book more satisfactory wisdom than is contained in Mr. Wm. Paul Gerhard’s “Drainage and Sewerage of Dwellings.”... Typographically, the book is all that can be desired, the binding is elegant, and the illustrations are copious and clear.—The Builder.

... It contains a large amount of well-digested matter, is copiously illustrated on almost every page, and written in a clear and direct style.... We recommend the work to all who are interested in the subject as a valuable addition to the existing literature on the subject treated.—The Sanitary Engineer.

Mr. Gerhard again shows his practical acquaintance with sanitary matters and the best remedies and methods to correct the prevalent evils connected with the application of this important science in the work before us. The very presentable manner, in which the author treats his subject, is by no means the least valuable feature of his literary work in the direction indicated.—American Engineer.

... While it does not pretend to be an exhaustive treatise on these subjects, it most certainly possesses a practical value, which is far superior to many of the larger works on Dwelling House Sanitation. The author has wisely employed the pencil as well as the pen in the illustration of his subject. And when we state the fact that there are 282 illustrations (not old ones already used in other works, but mostly new, fresh and artistic) within the compass of 302 pages, it will be seen that suggestion and instruction are conveyed in the most direct and forcible manner.... There is throughout the book a remarkable absence of any “pet theory,” or of the advertisement of any special “patent”—in short, it is a book which we should like to see upon the library table of every physician in the land.—N. Y. Medical Times.

Our readers are already familiar with the thoroughly lucid and practical style of Mr. Gerhard’s contributions to sanitary works. We commend this book as a brief manual to all architects, engineers, builders, mechanics, physicians, sanitarians and householders—to none more than the last.—The Sanitarian.