Lewis, T. H., St. Paul, Minn. Effigy Mound in Iowa. Pp. 3.
Linnæan Society, New York. Abstract of Proceedings for 1899-'90. Pp. 20.
Little, William. Letter on Timber. Montreal: John Lovell & Son. Pp. 42.
Mack, C. S.. M. D. Philosophy in Homœopathy. Chicago: Gross & Delbridge. Pp. 174.
MacQueary, Rev. Howard. Evolution of Man and Christianity. New York: D. Appleton & Co. Pp. 410. $1.75
Mantegazza, Paolo. Physiognomy and Expression. New York: Scribner & Welford. Pp. 327. $1.25.
Mercier, Charles. Sanity and Insanity. New York: Scribner & Welford. Pp. 395. $1.25.
Minnesota, University of. Catalogue for 1889-'90, etc. Pp. 143.
Montillot, Louis. L'Amateur d'Insects (The Amateur of Insects). Paris: Baillière. Pp. 352.
Newberry, J. S. Palæozoic Fishes of North America. Washington: U. S. Geological Survey. Pp. 228, with Fifty-three Plates.
New York State Board of Charities. Twenty-seventh Annual Report. Pp. 411.—Report on the Care of Dependent Children. Pp. 77.
Ontario, Report of Royal Commission on Mineral Resources. Toronto: Warwick & Sons. Pp. 566, with Map.
Ott, Isaac, M. D Malarial Fever. Pp. 64.
Owen, Edmund. Manual of Anatomy. New York: Longmans, Green & Co. Pp. 526. $3.50.
Powell, J. W., Director. Report of United States Geological Survey, 1886-'87. Two volumes. Pp. 1,060, with Plates.
Remsen, Ira, Editor. American Chemical Journal, June, 1890. Baltimore. Pp. 76. 50 cents. $4 per volume.
Ryder, John A. Origin of Sex, etc. Pp. 50.
Savage, M. J. The Jericho Road. Pp. 17.—Answer to a Letter. Pp. 16.—The Many-windowed House of Life. Pp. 14. Boston: G. H. Ellis. 5 cents each.
Skilton. James A. Evolution of the Mechanic Arts. Boston: J H. West. Pp. 24. 10 cents.
Smith, Alexander. Dreamthorpe. Rochester, N. Y.: George E. Humphrey. Pp. 352. $1.25.
Spencer, Prof. J. W. Iroquois Beach (Lake Ontario). Pp 14.—Ancient Shore Phenomena near the Great Lakes. Pp. 24.
Stevens, W. Le Conte. Microscope Magnification. Pp. 12.
Sullivan, J. W. Ideal Kleptomania. New York: Twentieth Century Publishing Company.
Sutton, J. Bland. Evolution and Disease. New York: Scribner & Welford. Pp. 285. $1.25.
Thayer, E. H. The Mortgage Foreclosed. Chicago; Belford-Clarke Company. Pp. 282.
Thornton, John. Advanced Physiography. New York: Longmans, Green & Co. Pp. 342. $1.40.
Thurston, Robert H. Heat as a Form of Energy. Boston and New York: Houghton, Mifflin & Co. Pp. 261. $1.25.
Unwin, W. Cauthorne. Elements of Machine Design. London and New York: Longmans, Green & Co. Pp. 459. $2.
Wahl, W. H., Philadelphia. Electro-Deposition of Platinum. Pp. 14.
Wentworth, G. A. A School Algebra. Boston: Ginn & Co. Pp. 362.
Wheelbarrow. Articles and Discussions on the Labor Question. Chicago: Open Court Publishing Company. Pp. 303. $1.
Woodward, Prof. C. M. The Educational Value of Manual Training. Boston, etc.: D. C. Heath & Co. Pp. 95.
Instruction by Experimental Methods.—As represented by Prof. J. F. Woodhull to the American Institute of Instruction, the New York College for the Training of Teachers has model classes of pupils in all grades to which apprentice teachers are assigned at stated hours to give experimental instruction in science. In the primary and grammar grades the experiments are performed by the teachers in presence of the pupils, after which the pupils are questioned concerning what they have observed. They are also allowed to examine the objects closely in hand. Familiar, every-day objects, which are convenient for manipulation are used. The purpose is not to load the children with facts, but to arouse their curiosity and beget in them inquiring habits of mind. In the high-school department, systematic scientific instruction is begun for the purpose of developing careful habits of experimenting, observing, and reasoning. Familiar objects or home-made apparatus are preferred for the experiments, both because most of the high schools are not in a position to purchase elaborate apparatus, and because they are believed to be more fit for the purpose. The apparatus in the markets is considered insufficient, "because most pupils of high-school age fail to comprehend the machines, and their minds are confused by them with reference to the principles." The pupils are taught to construct their own apparatus so far as there seems to be educational value in that kind of work; and in most cases such constructions have fulfilled their purpose better than the conventional apparatus. They are not intended to illustrate the apparatus of the markets, or to serve as a cheap substitute for it, but to illustrate scientific principles, for which imitations of "show-case" apparatus are not required. Of course, no attempt is made in this system to teach the whole of science or to cram with facts; but "to show the pupil how to study nature so that through life he may go on to acquire knowledge." Mr. Woodhull's conclusion is that "patience and a love for the work are the most essential qualifications for the teacher; with these and with freedom from unnecessary restraints, however meager other equipments may be, science may readily be