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136 Anæsthesia and Non-Anæsthesia in the Extraction of Cataract. By Haskett Derby, M.D. Cambridge: Riverside Press. 1882. Pp. 32.

Studies from the Biological Laboratory of Johns Hopkins University. Professor H. Newel Martin. Editor; Professor W. K. Brooks, Associate Editor. Baltimore: N. Murray. Vol. II, No. 2. 1882. Pp. 178. Illustrated.

Cotton-Seed: The Greatest Wonder of the Present Day. By Professor J. P. Stelle. Mobile. 1882. Pp. 8.

Hints and Suggestions for Reform in Medical Education. By Frederic R. Sturgis, M.D. New York: William Wieser, printer. 1882. Pp. 13.

Bulletin of the Buffalo Society of Natural Sciences. Vol. iv, No. II. Buffalo: Bigelow Brothers, Printers. 1882. Pp. 63. Illustrated.

Experiments in Amber Cane and the Ensilage of Fodders at the Experimental Farm, Madison. Wisconsin. David Atwood, printer. 1882. Pp. 78.

The Mistakes of Robert G. Ingersoll on Nature and God. A Scientific Criticism. By George W. Edgett. Boston: Thomas Todd, printer. 1881. Pp. 37.

Insects injurious to Forest and Shade Trees. By A. S. Packard, Jr., M.D. Washington: Government Printing-Office. 1881. Pp. 275. Illustrated.

Report on a Water Supply for New York and other Cities of the Hudson Valley. By J. T. Fanning, C.E. New York. 1881. Pp. 38. Illustrated.

On Ovariotomy. By Thomas Keith, M.D. Louisville, Kentucky: John P. Morton & Co., printers. 1881. Pp. 19.

Epidemic Convulsions. By David W. Yandell, M.D. Louisville, Kentucky: printed by John P. Morton & Co. 1881. Pp. 15.

A Discourse on the Life and Character of Dr. Richard O. Cowling. By David W. Yandell, M.D. Louisville, Kentucky: printed by John P. Morton & Co. 1882.

Statistics of the Production of the Precious Metals in the United States. By Clarence King. Washington: Government Printing-Office. 1881. Pp. 94. With Plates.

Gloria. A Novel. By R. Perez Goldos. From the Spanish, by Clara Bell. In two volumes. New York: William S. Gottsberger. 1882.

Polly's Scheme. By Corydon. Boston: D. Lothrop & Co. 1882. Pp. 207. $1.

The Chemistry of Cooking and Cleaning. By Helen H. Richards. Boston: Estes & Lauriat. 1882. Pp. 90.

Vaccination. Arguments Pro and Con. By Joseph F. Edwards, M.D. Philadelphia: P. Blakiston, Son & Co. 1882. Pp. 80. 50 cents.

First Aid to the Injured. By Peter Shepherd, M.B. Revised by Bowditch Morton, M.D. New York: G. P. Putnam's Sons. 1882. Pp. 87. 50 cents.

How to Make the Best of Life. By J. Mortimer Granville, M.D. Boston: S. E. Cassino. 1882. Pp. 96. 50 cents.

Easy Lessons in Light, by Mrs. W. Awdry, 114 pages; and Easy Lessons in Heat, by P. A. Martineau, 136 pages. London: Macmillan & Co. 1880.

The Rhymester, or the Rules of Rhyme. By the late Tom Hood. Edited, with Additions, by Arthur Penn. New York: D. Appleton & Co. 1882. $1.

The Occult World. By A. P. Sinnett. Boston: Colby & Rich. 1882. Pp. 172. $1.

Tables for the Determination. Description, and Classification of Minerals. By James C. Faye, Ph.D. Chicago: Jansen, McClure & Co. 1882. Pp. 85. $1.

John Stuart Mill: A Criticism. With Personal Recollections. By Alexander Bain, LL.D. New York: Henry Holt & Co. 1882. Pp. 200. $1.25.

James Mill: A Biography. By Alexander Bain, LL.D. New York: Henry Holt & Co. 1882. Pp. 466. $2.

The Wine Question in the Light of the New Dispensation. By John Ellis, M.D. New York: published by the author. 1882. Pp. 228,

The Practice of Commercial Organic Analysis. By Alfred H. Allen, F.C.S. Vol. II. Philadelphia: Presley Blakiston. 1882. Pp. 561. $5.

Annual Report of the State Geologist of New Jersey for the Year 1881. By Professor George H. Cook. Trenton, New Jersey: J. L. Murphy, printer. 1881. Pp. 107.



Purification of the Boston Water-Supply.—The water with which the city of Boston is supplied became affected last October by a peculiar and disagreeable taste and odor which made it unpalatable, and justified much complaint on the part of citizens. The taste was quite accurately described as a "cucumber-taste," from its resemblance to the taste of water which has stood in contact with cucumbers. In a milder form it was called a "fish-oil taste." After several efforts to determine its origin, Professor Ira Remsen, of Baltimore, was called in to give the subject a thorough examination. He, after patient investigation and experiments, which failed to discover the cause of the odor in other matters, determined its source, by the most satisfactory tests, to be the decomposition of a fresh-water sponge (Spongilla fluviatilis), that was found quite abundantly in the mud of the bottom of Farm Pond, the water of which was most offensive. Measures have been taken to free the pond from the cause of impurity.

The Hessian Fly.—From a monograph published by Professor A. S. Packard, Jr., through the United States Entomological Commission, it appears that the losses from the Hessian fly are greatest in the grain-raising areas of the Middle and Northwestern States and the adjoining regions of Canada, while the New England States have been comparatively free from its attacks, probably because so little wheat is cultivated in them. No statistics as to the losses have ever been collected, but they have been sufficient to occasion much consternation and alarm in certain years. Two 