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LEntered at the Post-Offlce of New York, N.Y., as Second-Class Matter.] 



Ninth Yeak. 

 YoL. XYIII. No. 459. 



NEW YORK, November ao, 1891. 



Single Copies, . '^ff -nts. 

 $3.50 Per Yeab, in ix- /anoe. 



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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. 



JUST PUBLISHED. 



THE LABRADOR COAST, 



^FBTAT IS SAID ABOUT IT. 



" I think that you have gotten together a very 

 useful and valuable little book."— Dr. C. V. Riley, 

 U. S- Entoniologist, Washington, D. C. 



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"■I am well pleased with it." — Dr. F. M. Hexamer, 

 Editor American Agriculturist, New York. 



"It seems to me a good selection of the matter 

 which every farmer and fruit grower ought to have 

 at his immediate command."— Prof. S. A. Forbes, 

 State Entomologist of Illinois, Champaign, 111. 



"A good book, and it is needed."— Prof. L. H. 

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"It is one of the best books of the kind I have 

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

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Price, $1.25. 



Sent postpaid to any address on receipt of price. 



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



A JOURNAL OF TWO SUMMER CRUISES 

 TO THAT REGION. 



WITH NOTES ON ITS EARLY DISCOV- 

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 SICAL GEOGRAPHY, GEOLOGY AND 

 NATURAL HISTOr.Y, TOGETHER WITH 

 A BIBLIOGRAPH { OF WORKS, ARTI- 

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 THE CIVIL AND NATURAL HISTORY 

 OF THE LABRADOR PENINSULA. 



By ALPHEUS SPRING PACKARD, ffl.D.,Pli.D. 



Sportsmen and ornithologists will be interested in 

 the list of Labrador birds by Mr. L. W. Turner, 

 which has been kindly revised and brought down to 

 date by Dr. J. A. Allen. Dr. S H. Scudder has con- 

 tributed the list of butterflies, and Prof. John 

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Much pains has been taken to render the bibliog- 

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It is hoped that the volume will serve as a guide 

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ell as those interested in geographical and histori- 

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513 pp., 8°, $3.50. 



N. D. C. HODGES, Publisher, 



874 Broadway, New York. 



Course of Mineralogy for Young People. 



Conducted by correspondence ; minerals and books 

 furnished. 



Collection and book, "First Grade," one dollar; 

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GUSTAVE GUTTENBERG, 

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New Method of Protecting Property 

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principle shous, in an instant without study or cal- 



lete CalendjT for any month from 



QUERY. 



Can any reader of Science cite 

 a case of lightning stroke in 

 which the dissipation of a small 

 conductor (one-sixteenth of an 

 inch in diameter, say,) has failed 

 to protect between two horizon- 

 tal planes passing through its 

 upper and lower ends respective- 

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 explained (for many of these see 

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First inserted June 19. No response 

 to date. 



N. D. C. HODGES, 



874 BROADWAY, NEW YOEK. 



