SCIENCE. 



[Vol. XIV. No. 335 



Spragne £lectric 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. 



CAUGRAPH 



GREATEST SPEED ON RECORD ! ! 



T. W. Osborne Avrote 1T9 words in on© 

 single minute on the CA1.IGRAPH, tlie 

 Cliampion Machf 



of the World, 



100,000 

 Daily 

 Users. 



G. A. Mf'Bride wrote 139 words in a single 

 minute, Blind folded, tliTis in each case 

 proving tlie falsity of many of the state- 

 ments of oar competitors. 



For full and correct account of above test, address 



THE AMERICAN WRITING MACHINE CO., 



HARTFORD, COMM. 



BRANCH OFFICES :-237 Broad 



14 W. 4th Street, Cincinnati, O.i 100 

 Street, Philadelphia. 



N. Y. 



■-ch 



REMINGTON 



STANDARD 



TYPEWRITER 



WON 



Gold and Silver Medals 



FOE 



CHAMPIONSHIP OF THE WORLD. 



At Toronto, in open contest, Aug. 13, 1S88. 



I Si Words per Minute, Witliout an Error. 



The above is an authentic record m.-ide by Mr. Frank E. McGurrin, at Detroit, on Jan. 2i, 1889, 

 on a memoriued sentence, thus beating all previous records of correct work, by 30 words per min- 

 ute and placing the •'Remington" still further beyond reach of competition. Photographic copies 

 of certified work furnished on application. Wyckoff, Seamans & Benedict, 327 Broadway, N.Y. 



J. GRUNOW 



631 Sixth Avenue, New I'ork 



Established 1852. 



Microscope Stands, 

 Oil Immersion Object- 

 ives and Abbe Con- 

 densers for Bacterial 

 and Histological work, 

 of Objectives, Camera 

 Lucida and other ac- 



f ogHliMS 



■^PATENT ff h 



I?, 



'"'/;'/"47,7'0'"y apparatus. 



:fiOLD medal; 



C &c., &c, 



Repairs Everything. 



lis success has brought a. lot of 

 im tators copying us in every way 

 DOS ble. Reinet?-ber that THE 

 Om-\ genuine LePage's Liquid 

 L lue is manufactured solely by the 



RUSSIA CEMENT CO. 



GLOUCESTER, MASS. 

 bend 10c, and dealers' card who 

 1 e'sn t keep it in stock, for sample. 



KIMBALL'S 



STRAIGHT CUT 



CIGARETTES 



Unsurpassed in quality. 



Used by people of refined taste. 

 Highest award at Brussels, 1888, 

 The finest smoking mixtures are of 

 our manufacture. 



Fifieen First Prize Medals. 

 WM. S. KIMBALL & CO., 



Rochester. N.Y. 



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. 



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 Patent Detective, Fairy Nov- 

 el, and Bicycle Cameras, and the 

 Celebrated Stanley Dry Plates, 

 great variety, from Sg.oo upward 



Amateur Outfi. „- 



Send for Catalogue or call and 

 than 40 years established in this line of b 



-Mo 



lOmS EAELE & CO. 



SUCCESSORS 10 



K. & 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. 



A POCKET WRENCH 



GOOD NEWS 

 TO L ADIES. 



^^reatest immcem^t^ver of- 

 fered. Kow'a your time to get 



Gold Band ^Moss Rose Toilet Set, Watch, Brass Lamp, 



or Webster's Dictionary. For full particulars address 



THK GREAT AMERICAIV TEA (^0„ 



P. O. Bos 239. 31 and 33 Vesey St., New Tork. 



FOOD 



ADULTERATION 



And its Detection. With photomicrographic plates and 

 a bibliographical appendi.t. By J. P. Battershall. 328 

 pages, 8vo, cloth. Price, 83.50. Circulars and Catalogues 

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



12 Cortlandt St., New York. 



