SCIENCE. 



"LooMis SYSTEM." INCANDESCENT 



ELECTRIC LIGHTING. 



The Loomis Dynamo. 



LOW TENSION. PERFECTLY SAFE. 

 DYNAMOS 



ABSOLUTELY AUTOMATIC. 



LAMPS, SOCKETS, AND SAFETY APPLIANCES 



EXCEL ALL OTHER SYSTEMS FOR 



EFFICIENCY AND DURABILITY. 



Send for Catalogue. 



EUREKA ELECTRIC CO. 



18 Broadway, STew York. 



The preservation of one's business appointments is as essentia! to a good business nnan as are checks, vouchers, &c. 



THE HULIN 



DIARY CALENDAR. 



This calendar is a great improvement upon any- 

 thing of the kind that has ever been published. We 

 give three times the space for memorandums of 

 any other, and the leaves are preserved for future 

 reference. 



Send for full descriptive circular of this useful 

 article, as well as our other OfBce Specialties and 

 Labor-Saving devices for accountants. 



Balance of our stock for 1890, REDUCED to 



25c. Each 



C'oiH2>lefe with Wire Stand. 

 FORMER PRICE 50c. *:ACH. 



JOHN S. HULIN, Manufacturing Stationer and Steam Printer. 



Headquarters for Fountain and Stylographic Pens, Letter Files, Type "Writers' Materials, Edison's Mimeo- 

 graph, and all Stationery Supplies, as well as Wedding Invitations and Visiting Cards Send 

 stamp for our Illustrated Catalogue of useful Office Specialties and Labor-S-— '-- 

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* J. S. HUEIX, 369 Rroadway, Xew York. 



CHANCE FOR ALL 



To Enjoy a Cup cf Perfect 

 Tea- A TRIAL ORDER of n^ 



pounds of Fine Tea, either Oolong- <)"- 

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S'^ 00. Be particularand statewhat kind 



Cr-lTees Rnd Bai^inp Powder. For full particu 

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31 and 33 Vesey St., Nkw York. 



MINERALS 



Cabinet Specimens and Collections. 



When in New York do not fail to visit our New 

 York store. On account of our very large stock we 

 are able to keep there as well as in Philadelphia a 

 very fine selection of choice Mineral Specimens. 

 Send for CompJets Catalogue, Free. 

 GEO. L. ENGLISH «& CO.. Dealers in Minerals, 

 1512 Chestnut St., Philadelphia. 

 739 & 741 Broadway. New York. 



At SiasGonset, Nantucket Island, 



36 FUKNISHEB COTTAGES. 



$120 TO $275 THE SEASON. 



Ocean views; surf bathing; no hot days, malaria or 

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DOUBLEDAY, 



39 Ann Street, New York. 



k PCIITC IVl!ITCn'>r'"<oI<<<'e1>l><iI<!nriii;1ar!:e profits, 

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BOOKS: HOAV to get them. If there is any 

 book or pamphlet that you want, wrfte to the Science 

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250 PIECES BRUSSELS 

 At $1.00 and $1.10. 



These goods are of tlie best 

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 to close out styles of w^hi«h they 

 have only small quantities. 



dowoidwoiVL ckj \^ib 61. 



NEW YORK. 



[Vol. XV. No. 377 



INVESTORS 



should appreciate the fact that the new 

 trans-continental systems of Railway 

 and Lake transportition are making 

 the City of Superior, Wisconsin, their 

 focal point and will rapidly develop 

 that city into a successful bidder for 

 trade now controlled by Chicago. 



Superior, Wisconsin, is the farthest 

 inland of any American City accessible 

 by water and is nearer than Chicago by- 

 rail, to Omaha, St. Paul, Minneapolis 

 and all points North and West of those 

 cities. It is in the heart of the richest 

 iron and lumber regions in the United 

 States; has grown from 7,000 to 14,000 

 population during the past year ; in- 

 creased its lake commerce from $9,- 

 836,461 in 1888 to $28,053,730 in 188». 

 It is going ahead now' more rapidly 

 than ever before. Shrewd investors 

 will recognize the importance of these, 

 facts and act upon them. 



I invest money in Real Estate or 

 First Mortgage Loans, and guarantee 

 7^ profits. Write me for information. 

 Inquiry will cost you nothing. I refer 

 by permission to Editor of Science, 

 and will furnish other references on 

 application. Address 



JAMES W. GREENE, 

 Box 679, West Superior, Wis. 



BLACK GRENADINES AND VEILING. 



We are exhibiting this week the larg- 

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 silk and Sllk-and-Avool Brocaded and 

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 by this house, the prices ranging from 

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Also a full line of Nun's Veilings, hem- 

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JAMES McCREEEY & CO. 



BROADWAY AND ELEVENTH STREET, 



NEW YORK. 



HEAD-TIRED PEOPLE 



Too busy to bother with Athletic 



Edwin Checklev'e remarkable "^'a 

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 published "A Pjoneer in Pr 



The book, bound in 

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 paid W. C BRYANT & CO.. H 

 liroadway, BROOBiYN, N.Y, 



