IV 



SCIENCE. 



[Vol. XIII. No. 314 





CREPE AND GAZE GRENADINES. 



METAL AND BROCADED EFFECTS. 



New York. 



GOOD NEWS 

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up orders for our celebrated 

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Rose China Tea Set, Dinner Set, 



Gol'l liand Moss Rose Toilet Set, "Watch, Brass Lamp, 



or Webster's Dictionary. ForfuU particularsaddresa 



THE GREAT AMERICAN TEA CO.. 



P. O. Box 289. 31 and 33 Vesey St., New Tort. 



Readers of Science 



Co7-responding •with or visiiing Adver- 

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EMINGTON 



Standard Typewriter 



Miss M E O 



WON 



GOLD MEDAL. 



AND 



SILVER MEDAL 



FOR 



CHAMPIONSHIP OF THE 



WORLD, 



At Toronto, August 13, 188S. 



OFFICIAL REPORT. 



" On General Writing — law. evidence, and commercial 

 matter — *Miss M. E. Orr won the Gold Medal for the 

 Championship of the World. *Mr. McGurrin won the 

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*A'oi'/< Miss Orr and Mr. McGurrin used 

 Remington Ty/>c-writcr. 



WYCKOFF, SEAMANS & BENEDICT, 



327 Broadway, N. Y. 



ANEW MAGAZINE-THE SWISS 

 Devoted to spreading a love of PDACC 



nature among the people. Edited UHUoO 



byEtiRLAN f£. Ballaed. Presidentof the Agassiz Asso- 

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CALIGRAPH 



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GREATEST SPEED m RECORD!! 



126 words per minute, errors excluded. 



T. W. Osboi'De, winner of international con- 

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30,000 



in 

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For full and correct account of above test, address 



ME AMERICAN WRITING MACHINE CO., 



HARTFORD, CONN. 



New York Branch, 337 Broadway. 



KIMBALL'S 



STRAIGHT CUT 



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Unsurpassed in quality. 



Used by people of refined taste. 

 Highest award at Brussels, 1888. 

 The finest smoking mixtures are of 



en First Prize Medals. 

 WM. S. KIMBALL & CO., 



Rochester. N.Y 



Sprague Electric Railway and Motor Company. 



For Stationary or Railway Work, 



for Mining or Engineering 



operationstheSPRAGUElVIOTORS 



are unexcelled. 



Estimates given for complete 

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Send for Circulars and full 

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16 and 18 BROAD STREET, NEW YORK. 



ELECTRICAL TESTING BUREAU, 



Johns Hopkins University, Baltimore, Md. 



Resistance Coils and Bo.xes Compared. 



Am meters and Volt meters calibrated. 



Condensers standardized. 



Primary and Secondary Batteries Tested. 



Efficiency of Dynamos and Motors Deter- 

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Insulation of Cables and Wires Tested. 



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Circulars describing Methods Used, Prices, 

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Address as above. 



R. ELLIS & CO. 



BUSINESS, HOTEL AND PATENT BROKERS, 



Room 46. JTew York. 



Clients Advised free o/ charge. 



TO EMPLOYERS. 



Having purchased the fixtures, good will, &c., of 

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NEW YORK EMPLOYMENT BUREAU, 



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