SCIENCE. 



[Vol. XIV. No. 344 



DAFT ELECTRIC LIGHT COMPANY. 



Power Stations. 



Stationary Motors 

 % to 100 H.P. 



Electric Railways. 



Car Motors 15 to 

 250 H.P. 



Executive Office, 1 15 Broadway, N.Y. 



FACTORY, JERSEY CITY, N.J. .ease Mention science. 



JOHNS HOPKINS UNIVERSITY, 



BALTIMORE. 



Announcements for the next academic 

 year are now ready and will be sent on 

 application. 



HEAVEN AND HELL, by EMAN- 

 UEL SWEDENBORG, 416 pages, paper 

 .cover. Mailed pre-paid for 14 Cents by the 

 American Swedenborg Printing and Publish- 

 ing Society, 20 Cooper Union, New York 

 City. 



Old and Rare Books. 



One Million Magazines. Back numbers, vols. 



and sets — old and new, Foreign and American. 



CATALOGUE UPON APPLICATION. 



A. S. CLARK, 



34 Park Row, New York City. 



» ACK NUMBERS and complete sets of leading Mag- 

 I azines. Rates low. AM. MAG. EXCHANGE, 

 Schoharie, N.Y. 



Schools. 



Connecticut, New Haven, 



MRS. CADY'S SCHOOL FOR YOUNG LADIES. 

 Prepares for Smith and Wellesley, and admits to 

 Vassar by Certificate. Circulars. Early application 

 necessary. ^ 



M 



Michigan, Houghton. 

 ICHIGAN MINING SCHOOL. — For Catalogues 

 address M. E. Wadsworth, A.M., Ph.D., Director. 



New York, Orange Co., Florida. 



THE LEONARD INSTITUTE, for both sex 

 Florida, Orange Co., N. >'., reopens Sept. 

 Eight young ladies, or misses will be received in i 

 family of the principal, Mrs. M. S. Parks. 



Wajits. 



A YOUNG MAN can have lucrative engage- 

 ment, not only a fixed salary, but accord- 

 ing to his work accomplished in travelling for 

 Science. A personal interview invited. 

 N. D. C. HODGES, 



47 Lafayette Place, New York. 



WANTED. — By a large manufacturing 

 house, an intelligent, energetic young 

 man about twenty years of age, to make working 

 drawings of electrical instruments from free-hand 

 sketches and verbal assistance. Must be able to 

 e.xecute tinted drawings and tracings as well, and 

 have a fair knowledge of general physics and prin- 

 ciples of electrical measuring instruments. One 

 who has had some practice in brass and machine 

 work preferred, as also one who will remain and 

 learn the business. Specimens of work required. 

 Address, stating salary expected, experience and 

 references, E. G. W., Science Office, N.Y. City. 



J, 



681 Sixth Avenue, New York 



Established 1852. 



Microscope Stands, 

 Oil Immersion Object- 

 ives and Abbe Con- 

 densers for Bacterial 

 and Histological work, 

 of Objectives, Camera 

 Lucida and other ac- 

 cessory apparatus. 



IMPROVED OIL LIGHT 



MAGIC LANTERNS. 



Also Lime and Electric Light Apparatus, and 



mechanical, plain, and fine colored views. 



J. B. COLT & CO., Manufacturers, 



No. 16 Beekman Street, New York. 



EAELE & CO. 



SDCCKSSORS 10 



B. & J. BECK, 



1016 Chestnut Street, Phila. 



Microscopes and all 

 Accessories and Ap- 

 paratus. Photograph- 

 ic and Photo-Micro- 

 graphic Apparatus and 

 Outfits. 



Spectacles, Eye 

 Glasses, Opera and 

 Marine Glasses, etc. 



Illustrated Price List 

 mailed free to any ad- 

 dress. Mention Science 

 in corresponding with us. 



E. & H. T. ANTHONY & CO. 

 591 Broadway, N.Y. 



Manufacturers and Importers of 

 PHOTOGRAPHIC INSTRUMENTS, 



Apparatus and Supplies of every 

 description. Sole proprietors of 

 the i*atent Detective, Fairy Nov- 

 el, and Bicycle Cameras, and the 

 Celebrated Stanley Dry Plates, 

 great variety, from $9.00 u pwa rd, 

 call 



established in this line of business. 



PAGES. THREE PACES. 



Hnndrfid Thousand new iubsqrlbazi for The FunOy 

 ^"^ _^. ' Uea»CoAp»Dlo» w^ted. It iTffie 

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months'* 



DOTili mlttM) by American Anthoi 

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implsto In 



WOTKiB Of 



lOat In- 



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ly famous writers in a bpIu^ eailly 



piiblloatiion, rivlDg the substance oi 

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 read D^ thtfbnilimt people. We have ensi 



FOR 



HomehjpldDacOr&tion. Lett&B from Correspondents 

 and taur Answeirs. The collages and seminaries oi 

 the unit«d Btates will be treated one each month in 

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 to parente having son* or d»u«rht»re whom they de- 

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TEN CENTS. 



Lfb«rel pay for Ut-erary worli adapted to our col- 

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offer 



use. 



subject which ^ 



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its I six montlis, 30 cents, and at 

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■.d yon will become a permanent reader. Address i 



John L. Douglass, Publisher, 

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Established 1859. 



H. A. DREW, 



Commercial Printer, 



37 Clinton Place, near Broadway, 



New York- 

 Wedding Orders, Souvenirs, Invitations, Or- 

 ders of Dance, etc., etc., done in the latest and 

 most elaborate styles, at reasonable prices. 

 All Favors promptly attended to. 



GOOD EMEWS 

 TO L AD8ES. 



L-ircateat induceme^^ver of- 

 fered. Kow'8 your time to get 

 up orders for our celebrated 

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 a beautiful Gold Band or Moss 



Eose China Tea Set, Dinner Set, 



)ia Hand Moss Rose Toilet Set, Watch, Brass Lamp, 



jr Webster's Dictionary. For full particulars address 



THE GREAT AMERICAN TEA (^O., 



F. O. Box 289. 31 and 33 Vesey St.. New York. 



