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. KNOWLEDGE 



[July 21, 1882. 



U 



KNOWLEDGE, 



33 



An Illustrated Magazine of Science. Plainly Worded— Exactly Described. 



Edited by RICHARD A. PROCTOR. 



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'Mi.i..L'nil't">'—'^'<'l''><">'»— Weather "Diagram 

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No. 25. 



A Study of Minute Life. No. III. By Henrj- J. Slnclt F.G.S.. F.H.M.S.-Ti; 

 Great Pyramid (lllmtratfJ). By the hdilor- Domestic Ventibtion. By W M 

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(//(u.(ru/f</)— Meat Preservati 



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The Properties and Motions of Fluid* 



Sohir Motion and Comets from Outside (llliit- 



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To Our Readers— Newton and Danvin. 

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No. 27. 



The Infinities . 



-The 



-The Antif|u 



By Pasteur— The Future of Kr 



s on Solar Energy. By the Edi 



T Ed Clodd. Part II.— The Amateur c-leiincian: 



;, PhotographT for Amateurs. By A. Brothers 

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caJcmy— The Three Cold Days of Mot. By tho Edilor. 

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Henry J. Slack, F.G.I 



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fey Lieut.-Col. W. A. Ross, late R.A.-Measuroment of tho Focal 

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No. 28. 



-vstals. By William Jago, 

 Population of the Earth. 

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