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Rh How to live a Century, and grow old Gracefully. By J. M. Peebles, M.D. Mew York: M. L. Holbrook & Co. Pp. 99. 50 cents.

Catalogue of the Flora of Minnesota. By Warren Upham. Minneapolis: Johnson, Smith & Harrison. Pp. 193.

The Latest Researches in the Mœris Basin. By Cope Whitehouse. Pp. 6.

Rudimentary Society among Boys. By John Johnson, Jr. Baltimore: N. Murray. Pp. 56. 50 cents.

On Supposed Glaciation in Pennsylvania, south of the Terminal Moraine. By H. Carvill Lewis, Haverford College. Pp. 8.

Mr. Bradlaugh and the House of Commons, from a Hindoo Point of View. London: W. Swan Sonnenschein & Co. Pp. 54. Sixpence.

Altars and High Places among the Emblematic Mounds. By S. D. Peet, of Clinton. Wis. Pp. 13, with Plate.

The Relation of Micro-Organisms to Surgical Lesions. By Henry O. Marcy, M.D., of Boston. Pp. 16.

Mexican Resources and Guide to Mexico. By Frederick A, Ober. Pp. 93, with Advertisements.

"The Quiver" (American edition). Vol. I. No. 1. Monthly. New York: Cassell &, Co., Limited. Pp. 64. $l.50 a year.

Pathology and Therapeutics of Diseases of the Nerve-Centers. By J. McF. Gaston, M.D., Atlanta, Ga. Pp. 28.

Medical Education. By Henry Leffmann, M.D., D.D.S.. Philadelphia. Pp. 39.

Committee on Metric System, Ninth Report. Boston Society of Civil Engineers. Pp. 4.

Asiatic Cholera in North America. Illinois State Board of Health. Springfield. Pp. 24.

Recommendation for Exclusion and Prevention of Asiatic Cholera. By John H. Rauch, Springfield, Ill. Pp. 11.

The Jury in Modern Corporate Life. By Edwin Young, Albany. Pp. 16.

College Mathematics: An Address. By Henry T. Eddy, Ph.D. Salem: Salem Press. Pp. 16.

Astronomical Papers prepared for the Use of American Kphemeris, and "Nautical Almanac." Vol. III, Part II, pp. 144; Part III, pp. 30. Washington: Bureau of Navigation, Navy Department.

The American Lesson of the Free-Trade Struggle in England. By General M. M. Trumbull. Chicago: Schumm & Simpson. Pp. 290.

Fichte's Science of Knowledge. By Charles Carroll Everett, D.D. Chicago: S. C. Griggs & Co. Pp. 287. $1.25.

Vocal and Action Language. By E. N. Kirby. Boston: Lee & Shepard. Pp. 163. $1.25.

A Politician in Trouble about his Soul. By Auberon Herbert. London: Chapman & Hall. Pp. 296.

Elements of English Speech. By Isaac Bassett Choate. New York: D. Appleton & Co Pp 220. $1.

The Bassett Claim. By Henrv K. Elliott. New York: G. P. Putnam's Sons. Pp.267. $1.

The Way out. By Charles J. Bellamy. New York: G. P. Putnam's Sons. Pp. 191. $1.

Elementary Text-Book on Physics. By Professors W. A. Anthony and C. F. Brackett. New York: John Wiley & Sons. Pp. 246. $1.50.

Poems by Sidney Lanier. Edited by his Wife. New York: Charles Scribner's Sons. Pp. 252. $2.50.

Bermuda. By Julia C. R. Dorr. New York: Charles Scribner's Sons. Pp. 148. $1.25.

The Reality of Religion. By Henry J. Van Dyke, Jr., D.D. New York: Charles Scribner's Sons. Pp. 146. $1.

Tenants of an Old Farm. By Henry C. McCook, D.D. New York: Fords, Howard & Hulbert. Pp. 460. $2.50.

An Elementary Treatise on Analytical Mechanics. By Edward A. Bowser, LL.D. New York: D. Van Nostrand. Pp. 511.

Principles of Political Economy. By John Stuart Mill. Abridged, etc., by J. L. Laughlin, Ph.D. New York: D. Appleton & Co. Pp. 658.

Comparative Physiology and Psychology. By S. V. Clevenger, M.D. Chicago: Jansen, McClurg & Co Pp. 258. $2.

The New Philosophy. By Albert W. Paine. Bangor. Me.: O F. Knowles & Co. Pp. 168. $1.08.

"Science" Reports of the Meetings of the Scientific Associations in Montreal and Philadelphia. Cambridge, Mass.: "Science" Company. Pp. 90.

Report of an Archæological Tour in Mexico in 1881. By A. F. Baudelier. Boston: Cupples, Upham & Co. Pp. 325, with Plates and Photographs.



The International Prime Meridian Conference.—he International Conference, for fixing upon a prime meridian whence longitude should be reckoned, began its sessions in Washington, October 1st. Twenty-five nations were represented by forty delegates. Rear-Admiral C. R. P. Rogers, U.S.N., was chosen President of the Conference, and Lieutenant-General Strachey, of Great Britain, Mr. Janssen, of Meudon, France, and Dr. Cruls, of Rio Janeiro, were elected secretaries. A number of American scientific men and foreign visitors of scientific reputation, not regular delegates, were allowed to attend the meetings, with the understanding that they might participate in the discussions on special invitation. The first resolution adopted by the Conference declared the desirability of adopting a universal meridian. A resolution was then offered recommending the meridian of Greenwich as a standard meridian for longitudes, but it was withdrawn to allow the French delegates to introduce a resolution providing for a neutral meridian, which should cut no great continent. To this, it was objected that no suitable observatory was situated in any place which such a meridian would pass through; and that the selection of a meridian so situated would require a new set of observations and surveys to connect it with existing longitudes, and a readjustment of seventy-five per cent of all the world's charts, at an expense of about ten million dollars. The resolution for a neutral meridian was lost by a large majority. The resolution, "That the Conference proposes to the governments represented the adoption as a 