322 



SCIENCE. 



BUSINESS OPPORTUNITY. 



There is an opening for a 

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 But little capital will be re- 

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N. D.C. HODGES, 



874 BROADWAY, NE W YORK 



THE AMERICAN RACE. 



By DANIEL G. BRINTON, M.D. 



" The book is one of unusual interest and value."— 

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" Dr. Daniel G. Brinton writes as the acknowledged 

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" The work will be of genuine value to all who 

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 out about the indigenous Americans '—Nature. 



"A masterly discussion, and an example of the 

 successful education of the powers of observatiou." 

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Price, postpaid, $2. 



H. D. C. HODGES, 874 Broadway, K. Y 



LIGHTNING DESTROYS! 



Pennsylvania Bedford Springs Mineral Water 



For Liver. Kidney and Bladder Troubles. 



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Shall it be your house or a 

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Entirely new departure in pro- 

 tecting buildings from lightning. 

 One hundred feet of the Hodges 

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Correspondence solicited. Agents wanted, 



AMERICAN LIGHTNING PROTECTION CO., 



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Fact and Theory Papers 



[Vol. XXI.- No. 540 



QUERY. 



I. THE SUPPRESSION OF CON- 

 SUMPTION. By GODFKET W. Hambleton, M.D. 

 12°. 40c. 



II. THE SOCIETY AND THE " FAD." 



By Appleton Morgan, Ksq. 18°. 20 cents. 



III. PROTOPLASM AND LIFE By 

 C. F. COX. 13°. 7S centa. 



IV. THE CHEROKEES IN PRE-CO- 



LUMBIAN TIMES. By CYRUS THOHAa. 12°. SI. 



V. THE TORNADO. By H. A. Hazen. 



12°. $1. 



VI. TIME-RELATIONS OF MENTAL 



PHENOMENA. By JOSEPH JASTROW. 12°. 50c. 



VII. HOUSEHOLD HYGIENE. By 

 Mart Taylor Bissell. 12°. 75 cents. 



N. D. C. HODGES, Publisher, 



874 Broadway, New York. 



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- 

 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, 1891. No re- 

 sponse to date. 



N. D. C. HODGES, 874 BROADWAY, N. Y. 



SCIENCE CLUBBING RATES. 



10^ DISCOUNT. 



We will allow the above discount to any 

 subscriber to Science who will send us an 

 order for periodicals exceeding $10, counting 

 each at its full price. 



N. D. C. HODGES, 874 Broadway, N. Y. 



_ i AS K' uj S a-; 



■■*^-C- W E MV^K E T H E: M >; 



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16 BEEKM AN Siyi:.^l89 LA3ALLE Sifc 



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MINERALS '"-'sro^'c. 



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GEO. L. ENGLISH & CO., Mineralogists, 



Removed to 64 East 12th Street, New York. 



AGENTS WANTED ON SALARY 



or commission to handle the New Patent Chemical 

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