SCIENCE. 



[Vol. XVI. No. 387 



"LOOMis system: incandescent 



ELECTRIC LIGHTING. 



The Loomis Dynamo. 



N LOW TENSION. PERFECTLY SAFE. 

 ■J DYNAMOS 



ABSOL UTEL Y A UT03IA TIC. 



LAMP.S, SOCKETS, AND SAFETY APPLIANCES 



EXCEL, ALL OTHER SYSTEMS FOR 



EFFICIENCY AND DURABILITY. 



Send for Catalogue. 



EUREKA ELECTRIC CO. 



IS Broadway, New^ York 



** I advise all parents to liave their boys and girls taught sliorthand-writing and type-writing. A ste- 

 nographer who can type-write his notes would be safer from poverty than a great Greek scholar." — 

 ■Charles Reade, on "Tbe Coming Man." 



Remington 



Standard Typewriter. 



For Fifteen Years the Standard, and 

 today the most perfect development of 

 the writing-machine, embodying the latest 

 and highest achievements of inventive and 

 mechanical skill. We add to the Reming- 

 ton every improvement that study and cap- 

 ital can secure. 



WYGKOFF, SEAMANS & BENEDICT, 



New York. 



GREATEST SPti_^ ^^111 



'"egt 



OUR 



BEST FOR MANIFOLDING. 



.00,000 Daily users. Mldsummer Stock-Taking Sale of 



SILKS, 



THE MOST DURABLE. 



Single Case, No. 1, . - S>70.00 



Donble Case, " S, . - ■ 85.00 



NeTV Special, "3, - • - 100.00 



For account of speed contests and 



Circulars, address 



THE AMERICAN WRITING MACHINE CO., 



HARTFORD, CONN. 



BRANCH offices: 237 BROADWAY, NEW York. 



14 West 4th Street, Cincinnati, O. 



1003 Arch Street, Philadelphia. 



English Factory, Coventry, England 

 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 Phuadelphia a 

 very fine selection of choice Mineral Specimens. 

 Send for Complete Catalogue, Free. 

 fiEO. L. ENGLISH & CO.. Dealers in Minerals, 

 1512 Chestnut St., Philadelphia. 

 739 & 741 Broadway, New York. 



In our Departments on the Main Floor and In 

 Ithe Basement, will commence on Monday, June 

 23, and continue until July 3. 



Seasonable and desirable assortments of Silk 

 Fabrics will be offered, daily, at prices that are 

 designed to secure a complete disposal of our 

 Spring and Summer Stock before the inventory. 



Ladies desiring such fashionable and useful 

 Fabrics as Washing Silks, India and China Silks, 

 Surahs, Louisiennes, in both Plain and Fancy, 

 Black and Colored Silks, Velvets, etc, will find 

 this a very interesting opportunity. 



JAMES M'CREERY& CO., 



BROADWAY AND ELEVENTH STREET, 



NEW YORK. 



THE fflDTHAL LIFE 



INSURANCE COMPANY 

 OF NEW YORK. 



RICHARD A. OTcCURDY, President. 



THE LARGEST, BEST AND MOST POPULAR 

 LIFE INSURANCE COMPANY IN 

 ■ THE WORLD. 



Assets January 1st, 1890, $136,401,328.02 

 New Business in 1889, - 151,602,483.37 

 Annual Income, - - - 31,119,019.62 



Purely Muhial. 



No Stockholders. 



NO OTHER COMPANY HAS SHOWN 

 RESULTS SO PROFITABLE AND GRAT- 

 IFYING TO POLICY-HOLDERS. 



ITS POLICIES ARE THE MOST 



LIBERAL AND DESIRABLE 



ISSUED. 



It has Paid Policy-holders since Organization 

 $287,681,948.20. 



The Twenty Year Distribution Policy 



issued by The Mutual Life Insurance 



Company is a Model Contract. 



The Company's Policies are now held by 

 182,310 Members. 



QneStrokg. 



G 



K. AN DERSON, 



30 Hanover St., Boston, Mass. 

 Circulars free. - - Mentiou this paper. 



Readers of Science 



Corresponding with or visiting Advertisers, 

 will confer a great favor by mentioning this paper. 



