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A WEEKLY NEWSPAPER OF ALL THE ARTS AND SCIENCES. 



PUBLISHED BY N. D. C. HODGES, 8T4 BROADWAY, NEW YORK. 



Tenth Year. 

 Vol. XX. No. 503. 



SEPTEMBER 23, 1892. 



Single Copies, Ten Cents. 

 3.50 Per Year, in Advance. 



Contents. 



Liquid Oxygen. G. D. Liveing 169 



New Discoveries at Baouss^ Roussfi, near 



Mentone. The Marquis de NadaiUay 170 



The Prevention of Cholera Asiatica. Hurfh 



Hamilton 170 



Florida Pitcher Plant. Charles B. Palmer.. 171 

 Current Notes on Anthropology. — XV. 



Daniel 0. Brinton, Editor 172 



Notes and News 173 



Ancient Mexican Heraldry. Agnes Crane... 174 

 &AY Head. P. B. Uliler 17(5 



Letters to the Editor. 



A Mountain-Top Experience. O. C. Charl- 

 ton 177 



The Gemination of the Lines in Mars. C 

 B. Warring 178 



The Aurora of July 16. W. M. Stine 178 



The Ancient Libyan Alphabet. A. H. Keane. 178 

 Book Reviews. 



Life Histories of North American Birds. 

 Joseph F. James 178 



Entered at the Post-0£Hce of New York, N. i"., aa 

 Second-Class Mail Matter. 



INSECTS AND INSECTICIDES. 



A PRACTICAL MANUAL, 



Concerning Noxious Insects and the Methods 

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By CLARENCE M. WEED, 



Professor of Entomology and Zoology, New 

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N. D. C. HODGES, 874 Broadway, New York. 



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