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S C I E-M C E 



LEntered at the Po3i-Offlce of New York, N.Y., as Second-Crass .^.Iter.j 



Ninth Year. 

 Vol. XVm. No. 458. 



NEW YORK, November 13, 1891. 



Single Copies, Ten Cents. 

 $3.50 Per Year, in Advance. 



THE 



Bell Tel 



COMPANY. 



98 MILK ST„ BOSTON, MASS, 



This Company owns the Letters 

 Patent slanted to Alexander Gra- 

 ham Bell, March 7th, 1876, No. 

 174,465, and January 30, 1877, 

 No. 1§6,7§7. 



The Transmission of Speech hy 

 all known forms of KLBCTKIC 

 SPEAKING TELEPHONES in- 

 fringes the rig-ht secured to this 

 Company by the above patents, and 

 renders each individual user of tel- 

 ephones, not furnished by it or its 

 licensees, responsible for such un- 

 lawful use, and all the conse- 

 quences thereof and liable to suit 

 therefor. 



AUTUMN 



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JUST PUBLISHED. 



THE LABRADOR COAST. 



A JOURNAL OF TWO SUMMER CRUISES 

 TO THAT REGION. 



WITH NOTES ON ITS EARLY DISCOV- 

 ERY, ON THE ESKIMO, ON ITS PHY 

 SICAL GEOGRAPHY, GEOLOGY AND 

 NATURAL HISTORY, TOGETHER WITH 

 A BIBLIOGRAPHY OF WORKS, ARTI- 

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 THE CIVIL AND NATURAL HISTORY 

 OF THE LABRADOR PENINSULA. 



By ALPHEUS SPRIKG PACKARD, M.D., Pli.D. 



Sportsmen and ornithologists will be interested in 

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

 which has been kiadiy revised and brought down to 

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

 tributed the list of butterflies, and Prof. John 

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 Labrador plants. 



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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513 pp., 8°, $3.50. 



N. D. C. HODGES, Publisher, 



874 Broadway, New York. 



OFWHAT USE 18 THAT PLANT? 



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iVew Method of Protecting Property 

 from Lightning. 



The Lightning Dispeller. 



Price, $20 to $30.— According to size. 



The Patent Lightning Dispeller is a conduc- 

 tor specially designed to dissipate the energy 

 of a lightning discharge, — to prevent its 

 doing harm, — placing something in its path 

 upon which its capacity for causing damage 

 may be expended. 



No recorded case of lightning stroke has 

 yet been cited against the principle oE the 

 Dispeller. So far as known, the dissipation 

 of a conductor has invariably protected under 

 the conditions employed. 



Correspondence solicited. 



AGENTS "WANTED. 



The American Lightning Protection Company, 



United Bank Building, Sioux City, Iowa. 



QUERY. 



Can any reader of Science cite 

 a case of lightninc^ 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- 

 ly? Plenty of cases have been 

 found which show that when the 

 conductor is dissipated the build- 

 ing is not injured to the extent 

 explained (for many of these see 

 volumes of Philosophical Trans- 

 actions at the time when light- 

 ning was attracting the attention 

 of the Royal Society), but not 

 an exception is yet known, al- 

 though this query has been pub- 

 lished far and wide among elec- 

 tricians. 



First inserted June 19. No response 

 to date. 



N. D. C. HODGES, 

 874 BEOADWAY, NEW YORK. 



