SCIENC 



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A WEEKLY NEWSPAPER OF ALL TH>.t^^ RTS AND SCIENCES 



PUBLISHED BY N. D. C. HODGES, 874 BROADWAY, 1nT/&o.„ 



: --''^U' 



Tenth Year. 

 Vol. XX. No. 4 



AUGUST 36, 1892. 



■^^^ "'GLE Copies, Ten Cents. 

 -*?• Per Year, in Advance. 



>. 



Contents. 



Is There a Sense of Direction? J. N. 



Hall 113 



Current iJotes on Anthropology. — 



XIII. Edited by D. G. Brinton. .. 115 



Some Points in the Nomenclature - 

 Priority Question. Lucien M. 

 Underwood 116 



The Progress Made in Teaching Deaf 

 Children to Ebad Lips and Talk, 

 IN THE United States and Canada. 

 Alexander Graham Bell 118 



Ebmarks on North American Lichen- 

 OLOGT. — Preliminary. W. W. 

 Calkins 130 



Letters to the Editor 121 



Book Reviews 124 



Entered at the Post-Offlce of New York, N.Y., as 

 Second-Class Mall Matter. 



INSECTS AND INSECTICIDES. 



A PRACTICAL MANUAL, 



Concerning Noxious Insects and the Methods 

 of Preventing their Injuries. 



By CLARENCE M. WEED, 



Professor of Entomology and Zoology, New 

 Hampshire State College. 



AVHAT IS SAID ABOUT IT. 



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 State Entomologist of Illinois, Champaign, 111. 



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 ever seen."— J. Freemont Hickman, Agriculturist, 

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" I shall gladly recommend it." — Prof. A. J. Cook, 

 Michigan Agricultural College.^ 



Price, $1.35. 



Sent postpaid to any address on receipt of price. 



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



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