SCIENCK 



[Vol. XX. No. 513 



New 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 of 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 Companj, 



United Bank Building, Sioux City, Iowa. 



THE LABRADOR COAST. 



A JOURNAL OF TWO SUMMER CRUISES 

 TO THAT REGION. 

 WITH NOTES ON ITS EARLY DISCOV- 

 EEY, ON THE ESKIMO, ON ITS PHY- 

 SICAL GEOGRAPHY, GEOLOGY AND 

 NATURAL HISTORY, TOGETHER WITH 

 A BIBLIOGRAPHY OF WORKS, ARTI- 

 CLES, AND CHARTS RELATING- TO 

 THE CIVIL AND NATURAL HISTORY 

 OF THE LABRADOR PENINSULA. 



By ALPHEDS SPRING PACKARD, ffl.D., Ph.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 

 Macoun, of Ottawa, Canada, has prepared the list of 

 Labrador plants. 



Much pains has been taken to render the bibliog- 

 raphy complete, and the author is indebted to Dr. 

 Franz Boas and others for several titles and impor- 

 tant suggestions; and it is hoped that this feature of 

 the book will recommend it to collectors of Ameri- 

 cana. 



It is hoped that the volume will serve as a guide 

 to the Labrador coast for the use of travellers, 

 yachtsmen, sportsmen, artists, and naturalists, as 

 well as those interested in geographical and histori- 

 cal studies. 



513 pp., 8^, $3.50. 



H. D. C. HODGES, 8T4 Broadway, New York. n. d. c. hodges, 874 Broadway, New York. 



A MINIATURE STEAM-ENGINE. 



By the kindness of our correspondent, Mr. Max 

 Kohl of Chemnitz, Germany, we are enabled to 

 present to our readers an illustration of a miniature 

 steam-enpine, recently constructed in his establish- 

 ment. Although so small as to fit easily within its 

 case, composed of an ordinary walnut shell, the 

 little machine is a practical working model, correct- 

 ly and completely finished in all its parts. The 

 cylinder, which is supplied with a complete sliding 

 valve, is 5.5 mme. in length and has a bore of 2 mme. 

 The boiler is 20 mme. in length and 8.5 mme. in 

 diameter. The diameter of the fiy-wheel islO mme. 

 and that of the steam channels 0.2 mme The slide 

 is 1.8 mme. in length and 1.7 mme. in breadth. The 

 machine is furnished with safety-valve, waste-cock 

 and funnel. The model is to be driven with a spirit 

 lamp, but it can also be put in motion by means of 

 a thin rubber tube, the one end of which is to be 

 screwed in the funnel on the liettle, while the other 

 end is supplied with a mouth f r blowing air into 

 the kettle. The model only serves to show in what 

 small dimensions working steam-engines can be 



THE WINNIPEG COUNTRY; 



R0DGHIN6 IT WITH AN ECLIPSE PARTY. 



BY 

 A. ROCHESTER FELLOW. 



(S. H. SCUDDER.) 



With thirty-two Illustrations and a Map. 

 W. $1.50. 



"This is a sprightly narrative of personal inci- 

 dent. The book will be a pleasant reminder to 

 many of rough experiences on a frontier which is 

 rapidly receding."— .Boston Transcript. 



" The picture of our desolate North-western terri- 

 tory twenty-five years ago, in contrast with its 

 civilized aspect to-day, and the pleasant features of 

 the writer's style, constitute the claims of his little 

 book to present attention." — The Dial. 



]Sr. D. O. HODG-ES, 



874 Broadway, New Tork, N. Y, 



A TEMPORARY BINDER 



for Science is now ready, and will be mailed 



postpaid on receipt of 75 cents. 



This binder is strong, durable and 

 elegant, has gilt side-title, and al- 

 lows the opening of the pages per- 

 fectly flat. Any number can be 

 t.iken out or replaced without dis- 

 turbing the others, and the papers 

 are not mutilated for subsequent 

 permanent binding. Filed in this 

 binder, Sczenceis always convenient 

 for reference. 



Fresh Air and Exercise. 



Getallthat's 



possible of 



both, if in 



need of flesh 



strength 



and nerve 



force. There's need,too, of plenty 



of fat-food. 



Scott's Emulsion 



of Cod Liver Oil builds up flesh 

 and strength quicker than any 

 other preparation known to sci- 

 ence. 



Scott's Emulsion is constantly ef- 

 fecting Cure of Consumption, 

 Bronchitis and, kindred diseases 

 where other methods fail. 



Prepared by Scott & Bowne, N. Y. All druggists. 



The 



Simplex Printer 



A new invention for duplicatin| 

 copies of writings or drawings. 



From an original, on ordinary paper with 

 any pen, 100 copies can be made. 50 copies 

 of typewriter manuscripts produced in 15 

 minutes. Send for circulars and samples. 

 AGENTS WANTED. 



LAWTON & CO., 



20 Vesey St., New York. 



^ INDEX 



TO VOLUMIE XVIII OF 



SCIENCE 



is in preparation, and will be 

 issued at an early date. 



■WOODCOCK AND QUAIL 

 — Gameland, the Ijlu&trated 

 magazine of shooting and 

 flshms. tells you where to 

 find these grand sporting 

 hlids In near-by and far- 

 away localities. It Is full of 

 camp life, woodcraft, land- 

 scape and natural history. 

 Bt the year, One Dollar. 

 Three months' trial sub- 

 scription, 25 cents. Address 

 GAMELAND, 1,267 Broadway, New York, N. T. 



IMmerals, 



Rocks, 



Fossils, 



Casts ot Fossils, 



Oeological 



Relief Maps. 



Ward'sNaturalScienceEstablishment 



ixaiurai OGience tsmDiisnmuni 



Geology, Paleontology, Zoology, Osteology, Anatomy. 



^or Circular. ROCHESTER, N. Y. 



Mineralogy, .....,,, ,,, „, 



Send for Circular. ROCHESTER, 



stuffed Animals 



and Slcins, 



Mountea 



Skeletons, 



ilnatomical 



models 



Invertebrates 



