may lead them to follow the more extended application of its principles in the works of the original and leading authors.
Report of the Joint Standing Committee on Water, on the Impurity of the Water-Supply of Boston. With the Report of Professor Era Remsen on the Subject. Boston: Rockwell & Churchill. 1881. Pp. 22.
The Brain or the Cat. Preliminary Account of the Gross Anatomy, with Four Plates. By Burt G. Wilder. M. D. Read before the American Philosophical Society, July, 1881. Pp. 38.
A Theorem on Planetary Motion; or Sunshine and Shadow. By Clark Roberts. M. D. St. Louis: Slawson & Co., printers. 1881. Pp. 32. 23 cents.
Transactions of the New York Academy of Sciences, October, 1881. Pp. 20.
Drug Attenuation. By J. P. Dake, M. D. Nashville: Haynes & Co., printers. 1881. Pp. 35.
The Debt to Africa. The Hope of Liberia. By A. N. Bell, M. D. Reprint from "American Church Review." 1881. Pp. 28.
Sur la Distribution de l'Énergie dans le Spectre Solaire normal. Par M. S.-P. Langley. Paris: Gauthier-Villars, printers. 1881. Pp. 5.
The Indian Question. G. W. Owen. Ypsilanti, Michigan. 1881. Pp. 24.
Forestry Bulletins. Nos. 1, 2. 3, 4, and 5. Issued by the Census Office, Department of the Interior, Washington, D. C. 1881.
An Abstract of the Results obtained in a Recalculation of the Atomic Weights, by F. W. Clarke, pp. 12; and Some New Compounds of Platinum, by F. W. Clarke and Mary E. Owens, pp. 5. Reprints from "American Chemical Journal."
Twenty-sixth Annual Report of the Director of the Astronomical Observatory of Harvard College. By Edward C. Pickering. Cambridge: University Press. 1882. Pp. 16.
The Palæolithic Implements of the Valley of the Delaware. From the "Proceedings of the Boston Society of Natural History." Cambridge, 1881. Pp. 25.
Boulder County as it is. By John K. Hallowell. Published by the Colorado Museum of Applied Geology. Denver, 1882. Pp. 19. 15 cents.
On a New Substance resembling Dopplerite from a Peat-Bog at Scranton. By Henry Carvill Lewis. Read before the American Philosophical Society. 1881. Pp. 6.
No more Free Rides on this Jackass, or Protection Forever and Everywhere. By Frank Rosewater. Cleveland: Published by the Author. 1882. Illustrated. Pp. 169. 50 cents.
More Public Parks: How New York compares with other Cities. Published by the New York Park Association. 1882. Illustrated. Pp. 23.
Descriptions of some New Ichnenmon Parasites of North American Butterflies. From the "Proceedings of the Boston Society of Natural History." By A. S. Packard. Jr. 1880. Pp. 38.
On the Microscopic and General Characters of the Peach-Tree affected with the "Yellows." Reprint from the "American Naturalist." By W. K. Higley, of Geneva, Wisconsin. 1881. Pp. 24.
First-Book of Knowledge. By Frederick Guthrie, F. R. S. New York: G. P. Putnam's Sons. 1882. Pp. 130. $1.
Publications of the Massachusetts Institute of Technology, and of its Officers, Students, and Alumni, 1862 1881. Compiled by William Ripley Nichols. S. B. Boston: A. A. Kingman. 1882 Pp. 50.
The Q. P. Index Annual for 1881. An Index to "The International Review," "The Popular Science Monthly," "The Century," "Lippincott's," "The Nation." "The Atlantic," "The Living Age," "Harper's." and "The Eclectic, for 1880-81. Bangor, Maine: Q. P. Index, publisher. 1882. Pp. 56.
The Prevention of Syphilis: An Address read before the Philadelphia' County Medical Society, December 14, 1881. By J. William While, M. D. Reprinted from the "Philadelphia Medical Times." 1882. Pp. 20.
The Anatomy of the Mouth-Parts and of the Sucking Apparatus of some Diptera. By George Dimmock, of Cambridge, Massachusetts. Boston: A. Williams & Co. 1881. Pp. 50. With Four Plates and Explanations.
Statistics of the Iron and Steel Production of the United States. Compiled by James M. Swank, Secretary of the American Iron and Steel Association, Special Agent of the Census. Washington: Government Printing-Office. 1881. Pp. 180.
The Viscosity of Gases at High Exhaustions. By William Crookes, F. R. S. From the "Philosophical Transactions of the Royal Society." 1881. Pp. 60. With Four Plates.
Elementary Lessons in Electricity and Magnetism. By Sylvanus P. Thompson. B. A., D. Sc, Professor in University College, Bristol. London: Macmillan & Co. 1881. Pp. 446. $1.25.
Experimental Researches into the Properties and Motions of Fluid, with Theoretical Deductions therefrom. By W. Ford Stanley. London: E. & F. N. Spon. New York: 446 Broome Street. 1881. Pp. 550.
Transactions of the Medical Association of Georgia. Thirty-second Annual Session. 1881. Edited by A. Sibley Campbell. M. D. Augusta: Joseph Loveday. 1881. Pp. 314.
Measurements of the Force of Gravity at Tokio and on the Summit of Fujinoyama. By T. C. Mendenhall, Ph. D., Professor of Experimental Physics in Tokio Daigaku. Tokio, Japan: Published by Tokio Daigaku (the University of Tokio). 2541 (1881). Pp. 17.
Geology of the Environs of Tokio. By David Brauns, Ph. D., M. D. . Professor of Geology in Tokio Daigaku. Tokio, Japan: Published by Tokio Daigaku. 1881. Pp. 84. With Eight Plates.
Tokio Daigaku (University of Tokio). The Calendar of the Departments of Law. Science, and Literature. 2540-'41 (1880-'81). Published by the University, Tokio, Japan, 2540 (1880).
Lectures on the Origin and Growth of Religion, as illustrated by some Points in the History of Indian Buddhism. By T. W. Rhys Davids. New York: G. P. Putnam's Sens. 1882. Pp. 263. Price, $2.50.
The Universe: or, The Infinitely Great and the Infinitely Little. By F. A. Pouchet. M. D. Sixth edition. Illustrated by 270 Engravings on Wood. New York: G. P. Putnam's Sons. 1882. Pp. 564. $3.75.
An Elementary Treatise on Electricity. By John Clerk Maxwell. M. A. Edited by William Garnett, M A., Oxford (Eng.) At the Clarendon Press. 1881. Pp. 208, with Six Plates. $1.90.
Sensation and Pain. By Charles Fayette Taylor. M. D. New York: G. P. Putnam's Sons. 1881. Pp. 77. 75 cents.
Aspasia. A Romance of Art and Love in Ancient Hellas. By Robert Hammerling. From the German, by Mary J. Safford. New York: William S. Gottsberger. 1882. Two vols. Pp. 685. $1.75.