INCANDESCENT LIGHTING 



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THE BROWN AUTOMATIC CONVERTER 



will supply and take care of ten to twelve t6 c.p. incandes- 

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Address 



THE BROWN ELECTRIC COMPANY, 



400 Wood Street, Pittsburgh, Pa. 



PRIZES OFFERED BY THE BOSTON 

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THE WALKER PRIZES, APRIL, 1886. 



The Society offers a first prize of from $60 to $100, and 

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The essays are to be sent to the Secretary of the Society, 

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Boston, Mass. EDWARD BURGESS, Secretary. 



GERMAN SIMPLIFIED. 



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;d at the Post-office in New York as seconrl-class mail matter. Copyright, 1886, by 7 he Science Company/. 



