SCIENCE. 



[Vol. XIV. No. 346 



Sprague Electric Railway and Motor Company. 



Bearings Self Oiling. 

 r^ll ~^^^m^ NON-SPARKING IN OPERATION. 



Lightest Weight Consistent with 

 Highest Efficiency. 



SIIVIPLE IN CONSTRUCTION. 

 Not Liable to get out of Order. 



Connmutator Wear Reduced 

 to a Minimum. 



16 and 18 BROAD STREET, NEW YORK. 



The Mutual Life Insurance Company 



OF NEW YORK. 



RICHARD A. McCURDY, PRESIDENT. 



ASSETS 



$126,082,153 56 



The Largest and best Life Insurance Company in the World. 



The New Business of the Mutual Life Insurance Company in 18J 



Exceeded $103,000,000. 



Its Business shows the Greatest Comparative Gain made by 

 any Company during the past year including 



A, gain in assets of ^ 7)275)3°' 68 



A gain in income of 3)°96)Oio 06 



A gain in new premiums of 2,333,406 00 



A gain in surplus of i, 645)^22 1 1 



A gain in new business of . . . 33)756,792 85 



A gain of risks in force 54,496,25 1 85 



Tie Mutual Life Insurance Company 



Has Paid to Policy-holders since Organization $272,481,839 82. 



Electrical 

 House 



Furnishings. 



32 &, 34 Frankfort St., 

 New York. 



Schools. 



Connecticut, New Haven, 



MRS. CADY'S SCHOOL FOR yOUNG LADIES. 

 Prepares for Smith and Wellesley, and admits to 

 Vassar by Certificate. Circulars. Early application 

 necessary. 



Mil 



Ho 



M 



ICHIGAN" iVIINING SCHOOL. — For Catalogues 



addri 



1 M. E. Wadsworth, AM., Ph.D., Dii 



■ New York, Gbange Co., Florida. 



THE LEONARD INSTITUTE, for both sex 

 Florida, Orange Co., N. Y., reopens Sept. 

 Eight young ladies, or misses t ill be received in i 

 family of the principal, Mrs. M. S. Parks. 



HEAVEN AND HELL, by EMAN- 

 UEL SWEDENBORG, 416 pages, paper 

 cover. Mailed pre-paid for 14 Cents by the 

 American Swedcnborg Priming and Publish- 

 ing Society, 20 Cooper Union, New York 

 City. 



FOOD 

 ADULTERATION 



And its Detection. With photomicrographic plates and 

 a bibliographical appendix. By J. P. Battershall. 328 

 pages, 8vo, cloth. Price, 83.50. Circulars and Catalogues 

 on application. E. & F. N. SPON, 



12 Corllandt St., New York. 



THE 



Eel le 



COMPANY. 



95 MILK ST„ BOSTON, MASS, 



TLis Compauy owns the Letters 

 Patent granted to Alexander Gra- 

 ham Bell, March 7th, 1876, Xo. 

 174,465, and January 30, 1§77, 

 No. 186,7§7. 



The Transmission of Speech hy 

 all known forms of KLECTRIC 

 SPEAKING TELEPUONES in- 

 fringes the right secured to this 

 Company by the above patents, and 

 renders each individual u»er 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. 



ESTERBROOK'S 

 STEEL PENS. 



OF SUPERIOR AND STANDARD QUALITY. 

 Leading Nos.; 048. 14, 130, 135, 239, 333 



For Sale by all Stationers. 



THE ESTERBRQOK STEEL PEN CO., 



Works : Camden, N.J. *.26 Joliu St., >'ew V«tvk. 



h manufact- 



* Car Co., 



[ason 6i Hamlin Organ aod Piano 



Repairs Everything* 



lis success has brought a lot of 



imitators copviugus in every way 



' - that THE 



GENUINE LePaee'3 Lii-uid 



Glue is manufactured solely by the 



RUSSIA CEMENT CO. 



GLOUCESTER, MASS. 



Send 10c. and dealers' card who 



doesn't keep Jt in stock, for sample. 



