LITERARY NOTICES. 



S^7 



Solar Light and Heat : the Source and 

 Supply. Gravitation ; with Explana- 

 tions of Planetary and Molecular Forces. 

 By Zachary Allen, LL. D. D. Apple- 

 ton & Co. Pp. 241. Price, $1.50. 

 Dr. Allen published an elaborate work 

 in 1851, entitled " The Philosophy of the 

 Mechanics of Nature." The present vol- 

 ume is a sequel to that publication, and, be- 

 sides embodying its results, it involves fur- 

 ther researches into the origin of molecular 

 forces, of gravitation, and also of solar light 

 and heat. The author's fundamental idea 

 is, that molecular forces have their origin 

 in the mechanical motions of great masses 

 of matter ; or that the heat, light, and ra- 

 diant energy of space, acting upon the earth 

 to produce all its activities, originate in the 

 rotary and orbital movements of the sun 

 and planets. The radiant forces are engen- 

 dered and transmitted by means of a uni- 

 versal, electric, ethereal medium ; and a large 

 portion of his volume is devoted to an elu- 

 cidation of electrical effects and laws which 

 go to prove that the solar system is a mighty 

 electric and electro-magnetic engine. Dr. 

 Allen's views are comprehensive and inter- 

 esting ; it is for physicists to judge of the 

 evidence of their validity. 



First Book of Qualitative Chemistry. 

 By Aluert R. Prescott, Professor of 

 Applied Chemistry in the University of 

 Michigan. Van Nostrand. Pp. 160. 

 Price, $1.50. 



This volume has been prepared primarily 

 for use under teachers who also employ the 

 author's larger work upon Qualitative Anal- 

 ysis. It is, therefore, a working laborato- 

 ry-book, useful for classes who desire to 

 take a short course in practical, qualitative 

 chemistry. It is designed to afford as much 

 insight as possible into chemical action, and 

 prepares for a more definite study of acids 

 and bases than is usual in such rudimentary 

 books. The name of the author gives as- 

 surance of the excellence of the work. 



Electro-Metallurgy practically treated. 



By Alexander Watt, F. R. S. S. A. 



D. Van Nostrand. Pp. 195. Price, $1. 



Here is the sixth edition of a technologi- 

 cal hand-book, the merit of which is thus 

 fully attested ; for those who have bought 

 it are naturally those who wanted to use it. 



and it has thus been subjected to the sharp- 

 est trial. It describes the processes of elec- 

 tro-gilding, electro-plating, and coating of 

 surfaces by electro-deposition ; and is full 

 of the information required by the artisan 

 in this field of industry. The volume is an 

 interesting record of recent improvements, 

 and is especially full in details concerning 

 the electro-deposition of nickel, which is 

 just supplanting silver as a protective and 

 ornamental coating for other metals. 



PUBLICATIONS RECER^ED. 



The Californian. A Western Monthly Jour- 

 nal. Vol. I., No. 1. January, 1880. San Fran- 

 cisco: The A. Roman Publishiug Co. Pp. 100. 

 25 cents a number, $3 a year. 



Industrial Education, or the Equal Cultiva- 

 tion of the Head, the Heart, and the Hand. An 

 Address, by Professor Alexander Ho<,'tr, before 

 the National Educational Association at Phila- 

 delphia, July 31, 1879. Pp. 15. 



Mathematics in a Dilemma. By Lawrence S. 

 Benson. New York: W. T. Hyde & Co. 1879. 

 Pp. 17. 



Prospectus of the Manual Training School of 

 Washington LTniversity. St. Louis, Missouri: 

 Globe-Democrat Printing Co. November, 1879. 

 Pp. 24. 



The Relation between Language and Ideas. 

 A Lecture by M. A. Clancy, belore the Teachers' 

 Institute of Alexandria, Virginia, September 19, 

 1879. Pp.27. 



Sermons of M. J. Savage. Series on the 

 Morals of Evolution. VII. The Relativity of 

 Duly. Pp.19. Vin. Real and Conventional Vir- 

 tues and Vices. Pp. 16. Boston, December 12, 

 1879. 



Notice of New Jurassic Mammals. By Pro- 

 fessor O. C. Marsh. Reprinted from "American 

 Journal of Science and Arts." December, 1879. 

 Pp.5. Illustrated. 



Legends of Sepulchral and Perpetual Lamps, 

 By Professor H. Carrington Bolton. London, 



1879. Pp. 9. 



Report of the Committee on Correspondence 

 appointed by the New York State Association of 

 School Commissioners and Superintendants, on 

 Modes of School Supervision and Administra- 

 tion in the Schools of the State. Pp. 60. 



Sensibility, Intelligence, Instinct, and Mind. 

 By A. J. Howe, M. D. Cincinnati, 1879. Pp. 8. 



The Berkeley Qu'irterlv. A Journal of Social 

 Science. Published bv the Fortnis^htly Club, 

 Berkeley, California. Vol. I., No. 1. January, 



1880. Pp. 80. 50 cents a number, $2 a year. 

 Eighth Report of the State Entomolocist on 



the Noxious and Beneficial Insects of Illinois. 

 Bv Cvnis Thomas, Ph. D., State Entomologist, 

 Springfield. 1879. Pp. 212, with Index. 



Double-Star Observations made in 1877-78 

 at Dearborn Observatory, Chicago, comprising : 

 I. A Catalonne of 2.51 Now Double Stars, with 

 Measures ; II. Micrometrical Measures of 500 

 Double Stars. Bv Sherbunie Wesley Burnham. 

 Reprinted from the Memoirs of the Royal As- 

 tronomical Society. Pp. 167. 



How to studv Phrenoloffv, including the First 

 Principles or Outlines of Phrenolotrv. By H. S. 

 Drayton. A.M. New York: S. R.Wells & Co. 

 18S0. Illustrated. 



The Workshop Companion : A Collection of 

 Useful and Reliable Recipes, Rules, Processes, 



