470 



SCIENCE. 



[Vol. XIII. No. 332 



Eleine7itary Statics. 

 Macmillan. i6^ 



By J. B. Lock. London and New York, 

 Si. 10. 



This little book has been prepared as a text-book for students 

 intending to present themselves for the Cambridge previous exami- 

 nation for Woolwich, for the Oxford and Cambridge certificate, and 

 for other English examinations of a similar nature. The author 

 has also endeavored to keep in view the importance of the subject 

 as an introduction to the study of physics and of practical mechan- 

 ics. A slight knowledge of trigonometry is needed, but considera- 

 ble portions may be read without any acquaintance with this sub- 

 ject. The truth of the parallelogram of forces is assumed, and, 

 like many English writers, the author bases the whole subject on 

 Newton's laws of motion. A chapter is added on graphic statics, 

 in which is considered the triangle of forces. The examples given 

 are in general simple, but at the end one hundred examples of 

 greater difficulty are inserted. 



AMONG THE PUBLISHERS. 



In the first number of The New Review, which Longmans, 

 Green, & Co. will issue at once, Senator Naquet, a partisan of 

 Gen. Boulanger, states the general's case by authority, and is an- 

 swered in the following pages by M. Camilla Pelletan. Another 

 burning question, " The Unionist Policy in Ireland," is discussed 

 in the same number by T. W. Russell, M.P. Lady Randolph 

 Churchill contributes to the June number of The New Review, 

 notes of travel, called " A Month in Russia ; " and another Ameri- 

 can, Mr. Henry James, supplies an article entitled " After the 

 Play." 



— Ward & Downey will publish shortly the first authentic nar- 

 rative of the early proceedings of Stanley's expedition to relieve 

 Emin Pacha, under the title of " With Stanley's Rear Column." 

 The author, Mr. J. Rose Troup, who was the transport officer of 

 the expedition, will give a full account of the experiences of the 

 party left at Yambuya. His narrative will include a description of 

 the voyage up the Kongo, the camp on the Aruvimi, and a com- 

 plete diar}', showing how events led up to the assassination of 

 Major Barttelot, and the failure of this branch of Stanley's expedi- 

 tion. 



— Messrs. Ginn & Co. announce for publication " Algebraic 

 Analysis," by G. A. Wentworth, J. A. McLellan, and J. C. Glashan. 

 This work, which has been previously announced as Wentworth & 

 McLellan's " University Algebra," is intended to supply students of 

 mathematics with a well-filled storehouse of solved examples and 

 unsolved exercises in the application of the fundamental theorems 



and processes of pure algebra, and to exhibit to them the highest 

 and most important results of modern algebraic analysis. The 

 work will be issued in two volumes, the first of which closes with 

 an extensive collection of exercises in determinals. 



— Cassell & Co. will publish on the 15th, Wilder's "The People 

 I've Smiled With " and a cheaper edition of Max O'Rell's "Jona- 

 than and his Continent." 



— D. Appleton & Co. publish this week " The Ice Age in North 

 America, and its Bearings upon the Antiquity of Man," by G. Fred- 

 erick Wright, professor in Oberlin Theological Seminary, and 

 assistant on the United States Geological Survey, with an appendix 

 on " The Probable Cause of Glaciation," by Warren Upham. 



— Houghton, Mifflin, & Co. have just published " The Begin- 

 nings of New England," a series of lectures by John Fiske ; " In- 

 door Studies," a new volume of essays, by John Burroughs, chiefly 

 on authors and literary subjects ; and two new volumes in their 

 Riverside Library for Young Folks, — " Birds through an Opera- 

 Glass," by Florence A. Merriam ; and " Up and Down the Brooks," 

 by Mary A. Bamford. They will publish, in connection with Bick- 

 ers & Son of London, an edition de luxe of Swift's works in nine- 

 teen volumes, octavo. Only 250 copies will be placed on the 

 American market. The reprint is after Sir Walter Scott's second 

 edition. 



— The Home Journal, in its issue of June 12, publishes a sum- 

 mer-resort guide which contains facts of interest concerning sum- 

 mer hotels. The guide gives the features of the hotels, the number 

 of guests each accommodates, with the tariff of charges, the dis- 

 tances, and how to reach the different points. 



— Triibner & Co. will issue immediately the first number of a 

 new periodical, The Periodical Press Index, a monthly record of 

 leading subjects in current literature. Mr. John S. Farmer, the 

 compiler, has indexed about 160 different publications in the first 

 number. There will also be issued a yearly summary volume, 

 which will include all that is contained in the twelve monthly num- 

 bers. 



— The May number of the Modern Science Essayist (Boston) 

 contains an essay on " The Descent of Man," by E. D. Cope, Ph.D. 

 The June number is devoted to the "Evolution of the Mind," by 

 Robert G. Eccles, M.D. 



— Nos. VII., VIII., and IX. of the Johns Hopkins University 

 Studies (seventh series) are devoted to " The River Towns of Con- 

 necticut, a Study of Wethersfield, Hartford, and Windsor," by 

 Charles M. Andrews. 



INDUSTRIAL NOTES. 



New England Electric Company. 



The New England business of the Sprague Electric Railway 

 and Motor Company of New York will hereafter be conducted by 



The Detroit Fair. 



A fair and exposition will be held in Detroit from Sept. 17 to 27. 



The above cut shows the building. Its dimensions are, height, 70 



feet ; length, 500 feet ; depth^ 250 feet ; height of corner towers, 



116 feet ; height of main tower, 200 feet ; exhibition space, 200,500 



THE DETROIT FAIR BUILDING. 



the New England Electric Company, with offices at 55 Oliver Street, 

 Boston. Mr. F. J. Sawyer is president of the new company, and 

 Mr. Edward Blake, treasurer. 



square feet. The art building will contain 10,000 feet of exhibit 

 surface. There will be stock stables and an agricultural field of 

 fifteen acres. 



