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strict application of the law of priority. One of the objects of the authors has been to define a method by which the recognition of antecedent work can be consistently secured. They propose that this rule be designated as "Merton rules" for convenience of reference.

Convinced that physical science awaits its next greatest elucidations from the side of biology, Dr. Ernst Mach has made from time to time various researches on sensation, the results of which he states in a volume under the title Contributions to the Analysis of the Sensations (Open Court Publishing Company, $1.25). He here discusses the space sensations of the eye in connection with the innervation of that organ and the physiological aspects of sensations of time and sensations of tone. The conclusions which he has arrived at on these topics show, he affirms, that "there is no rift between the psychical and the physical, no within and without, no sensation to which an outward, different thing corresponds. There is but one kind of elements, out of which this supposititious within and without is formed."


Agricultural Experiment Stations. Bulletins, Reports, etc. Cornell University: Nos. 181, 132. Plums, Celery.—Hatch, Massachusetts Agricultural College: Nos. 44-47. Tests of Fruits and Seeds, Fertilizers, the American Toad, Tobacco.—Michigan State Agricultural College; Nos. 141144. Forage Crops, Wheat, Fruit Tests, Vegetables.—New York: Nos. 114, 117-124, with Popular Editions of the same. Many subjects.—Ohio: No. 74. Fifteenth Annual Report. Pp. 42; Nos. 77, 78. Destructive Insects, Corn.—Oregon: No. 44. Sugar Beets. Pp. 48.—Purdue University: Special and Commercial Fertilizers. Pp. 8, with Sheet Table.—Tennessee State Board of Health: Bulletin, May, 1897. Pp. 16.—United States Department of Agriculture: Studies of American Grasses. Pp. 20, with plates: Some Common Bird-in their Relation to Agriculture. By F. E. L. Beal. Pp. 40.—North Dakota Climate and Crop Service. March, 1897. Pp. 6.—University of Illinois: Nos. 47, 48. Broom-Corn Smut. San Jose Seals. Pp. 60 and 26.

Baillet, Thomas M., Springfield, Mass. Manual Training: Its Educational Value. Pp. 18.

Bayliss, Clara Kern. In Brook and Bayou; or, Life in the Still Waters. New York: D. Appleton & Co. Pp. 180, with plates. 60 cents.

Bulletins, Proceedings, Serials, etc. Academy of Natural Sciences of Philadelphia: January, February, and March, 1897. Pp. 165, with 3 plates.—American Microscopical Society: Nineteenth Annual Meeting, August, 1896. Pp. 413. Columbia University Bulletin, March, 1897. Pp. 72. Macmillan Co.—Davenport Academy of Natural Sciences. Pp. 392.—Minnesota Botanical Studies. Conway MacMillan, editor. Parts X and XI. Pp. 340. with 42 plates.—Public Libraries: International Conference number. May, 1897. Pp. 96. Library Bureau, Chicago.—Revista de la Instrucción Publica Mexicana. Semi-monthly. Mexico. Pp. 32.—Société Neuchâtelaise de Géographie (Neuchâtel Geographical Society). Neuchâtel, Switzerland. Pp. 402.—United States Department of Labor. Pp. 130.

Cooke, Frances E. England (History for Young Readers). New York: D. Appleton & Co. Pp. 253. 50 cents.

Crehore, A. C, and Squire, G. O. The Synchronograph. A New Method of Transmitting Intelligence by the Alternating Current. Pp. 31, with plates.

Demoor, Jean, Mas art, Jean, and Vander Velde, Emile. L'Evolution Régressive en Biologie et en Sociologie (Retrogressive Evolution in Biology and Sociology). Paris: Félix Alcan. Pp. 324.

Dixon. D. B. The Mechanical Arts Simplified. Chicago: Lair & Lee. Pp. 497.

Equitist, The. Fortnightly. Vol. I, No. 1. W. E. Brokaw, Editor. New York: Estella Bachman Brokaw, publisher. Pp. 8. 5 cents.

Fuertes, James H Water and Public Health. The Relative Purity of Waters from Different Sources. New York: John Wiley & Sons. Pp. 75. $1.50.

Hubrecht, A. A. W. The Descent of the Primates. New York: Charles Scribner's Sons. Pp. 41 $1.

Kingsley, J. S. In Memoriam, Edward Drinker Cope. Pp. 10 of text, with portraits. Philadelphia: American Naturalist.

Kroeker, K. F. Germany (History for Young Readers). New York: D. Appleton & Co. Pp. 251. 60 cents.

Logan, John A., Jr. In Joyful Russia. New York: D. Appleton & Co. Pp. 275. $3.50.

Mason, William P. Water Supply, considered principally from a Sanitary Standpoint. New York: John Wiley & Sons. Pp. 504. $5.

Merrill, George P. Stones for Building and Decoration. Second edition, revised and enlarged. New York: John Wiley & Sons. Pp. 516. $5.

Moore, D. R., and Stanley, N. B. A Treatise on the Philosophy of Art. Pp 23.

Morris, Robert T., M. D. Lectures on Appendicitis and Notes on other Subjects. Second edition, revised and enlarged. New York: G. P. Putnam's Sons. Pp. 173.

Prosser, Charles S. Comparison of the Carboniferous and Permian Formations of Nebraska and Kansas. Chicago: University of Chicago. Pp. 41.

Reports. United States Commissioner of Fish and Fisheries (John J. Brice). Pp. 145. White Pine Timber Supplies. Letter from the Secretary of Agriculture. Pp. 20.—Zoölogical Society of Philadelphia: Twentieth Annual Report of the Board of Directors. Pp. 16.

Reprints. Boas, Franz: The Decorative Art of the Indians of the North Pacific Coast. Pp. 54.—Chaille, Prof. Stanford E.: The Practice of Medicine as a Money-making Occupation. Pp. 10.—Hoffman, Walter J.: On Native Indian Pictography. Pp. 10.—Linell, Martin L.: Insects collected by Dr. Abbott on the Seychelles and other Islands, with Description of Nine New Species of Coleoptera. Pp. 20.—Mason, Otis Tufton: Influence of Environment upon Human Industries or Arts. Pp. 20.—Mason. Prof. W. P.: Sanitary Problems connected with Municipal Water Supply. Pp. 21.—Mooney, James: The Ghost-Dance Religion, and the Sioux Outbreak of 1890. Washington: Bureau of Ethnology. Pp. 500.—Mercer, Henry O.: The Finding of the Fossil Sloth at Big Bone