Page:Popular Science Monthly Volume 19.djvu/581

Rh The Solar Parallax as derived from the American Photographs of the Transit of Venus, December 8-9, 1874. By D. P. Todd, M.A. From "American Journal of Science," June, 1881. Pp. 3.

Brief Review of the Most Important Changes in the Industrial Applications of Chemistry within the Last Few Years. By J. W. Mallet, F.R.S. From "American Chemical Journal." Pp. 98.

Color-Blindness. Remarks by Dr. B. Joy Jeffries at the Twenty-ninth Annual Meeting of the Board of Supervising Inspectors of Steam-Vessels, January 25. 1881. Pp. 31.

Report of the Analytical and other Work done on Sorghum and Cornstalks by the Chemical Division of the Department of Agriculture, Peter Collier, Chemist. Washington: Government Printing-Office. 1881. Pp. 101. Twenty-seven Plates.

American College Directory and Universal Catalogue. Vol. III. 1881. St. Louis, Missouri: C. H. Evans & Co. Pp. 105.

Seedless Fruits. By E. Lewis Sturtevant, M. D. South Framingham, Massachusetts. Pp. 29.

Photometric Measurements of the Variable Stars & Persei and D.M. 81°·25. By Edward C. Pickering, Arthur Searle, and O. C. Wendell. From "Proceedings of the American Academy of Arts and Sciences." Cambridge. 1881. Pp. 27.

On the Action of Hyponitric Anhydride on Organic Bodies, pp. 13; and On the Production of Ozone by Heating Substances containing Oxygen. Pp. 5. By Albert R. Leeds. From "Journal of the American Chemical Society."

Fatal Form of Septicæmia in the Rabbit produced by the Subcutaneous Injection of Human Saliva. An Experimental Research. By Dr. George M. Sternberg, Surgeon United States Army. Baltimore, 1881. Pp. 22. Illustrated.

Transactions of the Seismological Society of Japan. Vol. 1. Parts land II, April-June. 1880. Printed at the Office of the "Japan Gazette." Pp. 116.

Discovery of Palæolithic Flint Instruments in Upper Egypt. By Professor Henry W. Haynes. From "Memoirs of American Academy of Arts and Sciences." 1881 Pp. 5. Seven Plates.

"The Magazine of Art," June, 1881. Cassell, Petter, Galpin & Co. London and New York.

Papers of the Archæological Institute of America. By A. F. Bandelier. Boston: A. Williams & Co. 1881. Pp. 133.

Ranthorpe. By G. H. Lewes. New York: Williams. Gottsberger. 1881. Pp. 326. 75 cents.

The Emperor. A Romance. By Georg Ebers. From the German. By Clara Bell. 2 vols. New York: William S. Gottsberger. 1881. Per volume, 40 cents.

Rugby, Tennessee. By Thomas Hughes. London: Macmillan & Co. 1881. Pp. 168. $1.

A Theory of Gravitation, Heat, and Electricity. By Melville Marborg. Baltimore: John B. Piet. 1881. Pp. 104.

Sewer-Gas and its Dangers. By George Preston Brown. Chicago: Jansen, McClurg & Co. 1881. Pp. 242. $1.25.

Synopsis of the Fresh-Water Rhizopods. By Romyn Hitchcock. New York: published by the author. 1881. Pp. 56.

The Disposal of the Dead; a Plea for Cremation. By Edward J. Bermingham. M.D. New York: Bermingham & Co. 1881. Pp. 89. $2.

Osteology of Speotyto and Eremophila. By R. W. Shufeldt. Surgeon United States Army. Washington. 1881. Pp. 147. Illustrated.

Comparative New Testament. Old and New Versions arranged in Parallel Columns. Philadelphia: Porter & Coates. 1881. Pp. 690. $1.50.

A Text-Book on Anatomy, Physiology, and Hygiene. By J. T. Scovell. Terre Haute, Indiana, 1881. Pp. 88.

Butterflies; their Structure, Changes, and Life Histories. With Special Reference to American Forms. By Samuel H. Scudder. New York: Henry Holt & Co. 1881. $3.



Salmon of the Pacific Coast.—Messrs, David S. Jordan and Charles H. Gilbert, who have been engaged in the study of the fishes of the Pacific coast, state in the abstract of their report, which is published in the "American Naturalist," that they have observed five species of salmon (Oncorhyncus) in the waters of the North Pacific. These species may be called the quinnat or king-salmon, the blue-black salmon or red-fish, the silver salmon, the dog-salmon, and the hump-back salmon; and they are known by many other and vernacular names. The quinnat and blue-black salmon habitually run in the spring, the others in the fall, the two former species having the greater economic value. The spring-running salmon ascend only those rivers which are fed by the melting snows from the mountains, and which have sufficient volume to send their waters well out to sea, as the Sacramento, Rogue, Klamath, Columbia, and Frazer Rivers. They are chiefly adults, but their milt and spawn are no more developed in them when they go up the rivers than they are at the same time in others of the same species which will not enter the streams until fall. High water in any of these rivers in the spring is always followed by an increased run of fish, and it is believed that the disposition to run is excited by contact with cold water. The average weight of the quinnat in the spring is twenty-two pounds in the Columbia River, and about sixteen pounds in the Sacramento River. Individuals weighing from forty to sixty pounds are frequently found in both rivers, and some as heavy as eighty pounds. Fish that enter the rivers m the spring continue to ascend until death or spawning overtakes them. Probably none of them ever return to the ocean, and a large proportion fail to spawn. They are known to ascend the Sacramento to its extreme head-waters, about four hundred miles, and the Columbia as far as the Spokan Falls, a 