152 



SCIENCE, 



[Vol. XVII. No. 423 



use, OTieration, and setting of the slide-valve and independent 

 cut-off, followed by a discussion of the various forms of valve- 

 gears, and of automatic cut-off and throttling engines. A chap- 

 ter treating of compound and triple and quadruple expansion 

 engines comes next, after which condensers, pumps, and pump- 

 ing-engines are considered. Next is given a chapter on the mis- 

 cellaneous attachments and minor details of an engine, embracing 

 stop-valves, throttle-valves, and relief- valves, stuffing-boxes, belt- 

 ing, lubricators, etc., followed by a chapter on the management 

 of engines and pumps, engine trials, and dynamometers. 



When the subject of boilers is reached, a chapter is devoted to 

 the theory of combustion and the various types of boilers in use, 

 and another to their constructive details and strength. The con- 

 cluding chapter of the book treats of the appendages and accesso- 

 ries of boilers, their decay, management, etc. 



At first blush, after a hasty glance through the pages of this 

 bulky volume, the price of it would seem too great; but, after a 

 careful examination, that impression disappears. True, the 

 material from which the author evolved the work was abundant 

 and ready to hand, but the illustrations alone (and they are many) 

 " came easy." The labor of working over the material, — putting 

 it '• into perspective," as it were, effectively, discriminatingly, and 

 judiciously, — and welding the whole together into a book suita- 

 ble alike to the needs of the student, the engineer, and the mis- 

 cellaneous seeker for information, must have been enormous. 



That the work is well done is certified to by the reputation of both 

 author and publisher. 



AMONG THE PUBLISHEES. 



The Forest and Stream Publishing Company announce a new 

 and enlarged edition of " Fly-Fishing and Fly-Making for Trout," 

 by J. Harrington Keene. The book has as illustrations actual 

 specimens of the silk, feathers, and other materials used in fly- 

 making. 



— A " Flora of Palestine " is in progress, edited by the Rev. G. 

 E. Post, and is now completed as far as the end of the order Um- 

 belliferce. Several new species are described. 



— Among the contents of the New England Magazine for 

 March, we note "The Early History of Electricity in America," 

 by George Herbert Stockbridge; "Window-Gardening," by Mrs. 

 Henrietta L. T. Wolcott; "The Indian-Corn as our National 

 Plant," by Sarah Freeman Clarke; "The Problem of the Unem- 

 ployed," by William M. Salter; and "The History of Historical 

 Writing in America," IH., by J. F. Jameson, Ph D. 



— Messrs. Ginn & Co. announce " The Industrial Primary 

 Arithmetic," by James Baldwin, Ph.D., to be published in April. 

 This work possesses many features which distinguish it from 

 others of its class. Theory gives place to practice. The pupils 



Publicatic 



IS received at Editor's Offic 

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Alabama Geological Survey. Report on tbe Cahaba 

 Coal Field, by Joseph Squire, M.E., with Appen- 

 dix on the Geology of the Valley Regions Adja- 

 cent to the Cahaba Field, by Eugene A. Smith. 

 Montgomery, Ala., State. 189 p. 8°. 



Austen, W. C. R. An Introduction to the Study of 

 Metallurgy. London, Charles GriflBn & Co.; 

 Philadelphia, Lippincott. 892 p. 12°. 



Ball, R. S. Time and Tide, A Romance of the 

 Moon. New York, E. & J. B. Young. 188 p. 

 16°. $1. 



Caeus, p. The Soul of Man: An Investigation of the 

 Facts of Physiological and Experimental Psy- 

 chology. Chicago, Open Court Publ. Co. 458 p. 



12°, 



Darwin, C. On the Structure and Distribution of 

 Coral Reefs, with an Introduction by Joseph W. 

 "Williams. New York, A. Lovell & Co. 278 p.;. 12°. 



DiETz, W. D, The Soldier's First Aid Handbook. 

 New York, Wiley. 93 p. 16°. $1.25. 



Gage, A. P. Physical Laboratory Manual and Note 

 Book. Boston, Ginn. 121 p. 12°. 45 cents. 



Gkeen, A. H. The Birth and Growth of Worlds. 

 New York, E. & J. B. Young & Co. 61 p. 16°. 

 40 cents. 



Kings' Jester, The. Vol, I., No. 1. March, 1891. m. 

 New York, Herbert Booth King & Brother. 16 p. 

 4°. ^1 per year. 



Lock, J. B. Arithmetic for Schools. American edi- 

 tion. London and New York, Macmillan. 338 p. 

 ]6°. 70 cents. 



MERcnRT, The. Vol. I., No. 1. w. Halifax, N. S., 

 Dunn Publ. Co. 8 p. f°. S2 per year. 



Morgan, C. L. Animal Life end Intelligence. Bos- 

 ton, Ginn. 512 p. 8". $4. 



Perry, J. Spinning Tops. The " Operatives' Lec- 

 ture " of the British Association Meeting at 

 Leeds, 6th September, 1890. New York, E & J.B. 

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Tidy, C. M. The Story of a Tinder-Box. New York, 

 E. & J. B. Young& Co. 105 p. 16°. 80 cents. 



U. S. Naval Academy, Annapolis, Md., Annual Reg- 

 ister of the, 1890-91. Washington, Government. 

 84 p. 8°. 



Ward, H. M. Diseases of Plants. New York, E. & 

 J. B. Young. 196 p. 16°. gl. 



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