Vol. 21 

 No. 6 



A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE 



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FUEL; ITS COMBUSTION AND ECONOMY. 



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ICE-MAKING MACHINES. The Theory of the Action 

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WATT'S ELECTRO-METALLURGY PRACTI- 

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THE STUDENT'S TEXT-BOOK OF ELECTRI- 

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MODERN METEOROLOGY. A series of six Lectures 



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FIRST BOOK IN QUALITATIVE CHEMISTRY. 

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THERMODYNAMICS. By Prof. II. T. Eddy. Uni- 

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