I THE STORY OF THE 



I BRITISH RACE. 



ra By John Munro, C. E., author 

 a of " The Story of Electricity." A 

 § new volume in the Library of Use- 

 B ful Stones. Illustrated. i6mo. 

 g Cloth, 40 cents. 



g EDUCATION BY 

 I DEVELOPMENT. 



g The Second Part of the Peda- 

 S gogics of the Kindergarten. By 

 ^ Friedrich Froebel. Translated by 

 a Josephine Jarvis. (International 

 S Education Series.) i2mo. Cloth, 



a ^'oo. 



s 



K D. APPLETON AND COMPANY, Publishers, 

 S NEW YORK. 



aHSH52SESHS2SHH5HSHSHS2SaS2SH52Sa2HHSi5H52SHSES2SH5ifi 



malnut Codge 



HOSPITAL, 



HARTFORD, CONN. 



Organized in 1880 



for the 



special Medical 



Treatment of 



Alcohol 



and 



Opium 



Inebriates. 



ELEGANTLY situated in the snbnrbs of the city, with 

 every appointment and appliance for the treatment 

 of this class of cases, including Turkish, Russian, Boman, 

 Saline, and Medicated Baths. Each case comes under the 

 direct personal care of the physician. Experience shows 

 that a large proportion of these cases are curable, and 

 all are benefited from the application of exact hygienic and 

 scientific measures. This institution is founded on the 

 well-recognized fact that Inebriety is a disease and curable, 

 and all these cases require rest, change of thought and 

 living, etc. 



At Murray Hill Hotel, New York city, the second Tues- 

 day of each month, from 12 to 4 p. m. 



Applications and all inquiries should be addressed 



T. D, CROTHEKS, M.D., 

 Sup't Walnut Lodge, Hartford, Conn. 



OFFICE AND WORKS OF 



THE NATIONAL ORE & REDUCTION CO., Durango, Mexico. 



Manufacturers of a new chemical composition, Ferro=Nickel Manganese Calcium Fluoride, 

 highly recommended in every foundry. 



FERRO=NICKEL MANGANESE 



is adopted by four National Governments, twenty-eight Railroad Companies, and almost 

 all up-to-date progressive foundries in Europe as well as in the United States. Several 

 arsenals have given Ferro-Nickel Manganese a hearty indorsement, because it is manu- 

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PRICE, 10 CENTS PER POUND, UNITED STATES CURRENCY. 



Beware of imitations or alloys sold at double or triple their price. 

 Apply for Directions, Catalogue, and Testimonial to 



The National Ore and Reduction Co., 



Sole Hanufacturers, Durango, Tlexico, and La Compagnie Francaise du fletal D^ploye' 

 (French Expanded iletal Co.), Paris, France. 



, REPRESENTATIVES: 



STAHLKNECHT Y CIA., Bankers, Durango, Mexico, Exclusive Agents for the Republic of 



Mexico, Central and South American Republics. 

 THE S. OBERMAYER CO., Cincinnati, 0., U.S.A. 



H. McLaren & CO., Agents, Montreal, Canada. 

 HOWARD CHEMICAL WORKS, Agents, Howard Station, St. Louis, Mo., U. S. A. 



Mention "AprLETONs' Popular Science Monthly." 



