SCIENCE. 



[Vol. XIV. No. 354 



Sprague Electric Railway and Motor Company. 



Bearings Self Oiling. 

 NON-SPARKING IN OPERATION. 



Lightest Weight Consistent with 

 Highest Efficiency, 



SIMPLE IN CONSTRUCTION. 

 Not Liable to get out of Order. 



Commutator Wear Reduced 

 to a Minimum, 



16 and 18 BROAD STREET, NEW YORK. 



GLOYE DEPARTIfflENT. 



We are now offering our new Fall importa- 

 tion of 



Vve. XAYIER JOUYIN 



and Jouvin & Co. Glace and Suede Gloves for 

 Ladies, Gentlemen, and Children, Also other 

 popular makes, including English Cape Tan 

 for walking and driving. 



We call special attention to our new Gauntlet 

 leather Gloves for Ladies, ir the newest shades, 



Information about styles, color?, and prices 

 will be sent on request. 



JAMES McCREEEY & CO. 



BROADWAY AND ELEVENTH STREET, 





PUE GARMENTS.— Russia Sable, Otter and Seal 

 A Shoulder Capes, Seal Sacques, Dolmans and 

 Jackets, Silver Fox, Blue Lynx and Otter Trim- 

 mings. Fur Boas and Muffs. 



LADIES' CLOTHS.— Ulster Cloths and Suiting?, 

 Black and Colored Matelasse, Elyslans, Fur 

 Beavers and Diagonals for Overcoatings. Fancy 

 Cloths for Children's wear. 



PARIS Costumes and Dresses, Ladies' Cloaks, 

 Jackets and Wraps, Opera Cloaks and Sortie 

 de Bal. 



JJiooidwcLii c\j> \^vb 6i. 



NEW YORK. 



NEW YORK. 



IMPROVED OIL LIGHT 



MAGIC LANTERNS. 



Also Lime attd Electric Light Apparatus, and 



mechanical, plain, and fine colored views. 



J. B. COLT & CO., Manufacturers, 



No. 16 Beekman Street, New York. 



& H. T. ANTHONY & CO. 

 591 Broadv\ay, N.Y. 



inufacturers and Importers of 



PHOTOGRAPHIC INSTRUMENTS, 

 'I Apparatus and Supplies of every 

 description. Sole proprietors of 

 the Patent Detective, Fairy Nov- 

 el, and Bicycle Cameras, and the 

 Celebrated Stanley Dry Plates. 

 Amateur Outfits in great variety, from $g.oo upward. 

 Send for Catalogue or call and examine. ^*='More 

 han 40 years established in this line of bi 



FOOD 



RATION 



And its Detection. '.9(. notomicrographic plates and 

 a bibliographical appenQi... By J. P. Battershall. 328 

 pages, 8vo, cloth. Price, $3.50. Circulars and Catalogues 

 on application. E. & F. N. SPON, 



12 Corilandt St., New York. 



HOUSEHOLD MICROSCOPE 



Sent to any address for $5.00 



This instrument is simply for 

 use by a beginner in Microscopy. 

 The finer Microscopes vary in 

 value from $25, to $250. Send 

 for catalogue to 



G. S. WOOLMAN, 



116 FULTON ST., 



nil I kl f* n A I O International Mineral Cabinets, 

 nniNtnALo specimens from Europe, Asia, 

 IlllllUlinUV. Africa, S. America, Mexico, 

 Greenland, Canada and U.S. loo spec, ?).50 ; 50 spec, 

 ^1*75 ; '^l spec , $1, each collection in handsome polished 

 hard-wood case, expressage prepaid. Finest stock of 

 specimens in U.S. Minerals for blowpipe analysis by 

 the pound cheap. Complete Catalogue Free. Consign- 

 ments from all parts of the world constantly arriving. 

 GEO. L. ENGLISH & CO., Dealers in Minerals. 

 1512 Chestnut St., Philadelphia, Pa 



THE 



Aiiiicaii Eel Tdepliif. 



COMPANY. 

 95 MILK ST„ BOSTON, MASS. 



Tbis Company owns the Letters 

 Patent granted to Alexander Gra- 

 ham Bell, i>Iarcli 7tli, 1876, No. 

 174,465, and January 30, 1§77, 

 No. 1§6,7§7. 



The Transmission of Speech by 

 all known forms of ELECTRIC 

 SPEAKING TELEPHONES in- 

 fringes the right secured to this 

 Company by the above patents, and 

 renders each individual user of tel- 

 ephones, not furnished by it or its 

 licensees, responsible for such un- 

 lawflil use, and all the conse- 

 quences thereof and liable to suit 

 therefor. 



ESTERBROOK'S 

 STEEL PENS. 



OF SUPERIOR AND STANDARD QUALITY. 

 Leading Nos,; 048, 14, 130, 135. 239, 333 



For Sale by all Stationers. 

 THE ESTERBROQK STEEL PEN CO., 



Works : Oamden, N. J. -26 Joliu St.. New York. 



PatenL F I .-t 1 in > ;v3ste 



I IN THE WORLD. i3t 



:goldmedals) 







Iison &. Hamlin Organ and Piano 



:o At. Ac 



Repairs Everything. 



Its success has brought a lot o£ 

 imitators c " ' " "~ 



Mble 



L\ GENUIJ^LILel'aE 

 Glue IS manufat-tured solely by the 



RUSSIA CEMENT CO. 



GIOUCEbTER, MASS. 

 Send lOi, and dealers' card who 

 lesn t keep i' m stock, for earpple. 



