SCIENCE. 



[Vol. XIII. No. 332 



Spragiie Electric Railway and Motor Company. 



Lightest Weight Consistent with 

 Highest Efficiency. 



SliVIPLE IN CONSTRUCTION. 



Not Liable to get out of Order. 



Bearings Self Oiling. 



NON-SPARKING IN OPERATION. 



Commutator Wear Reduced 

 to a Minimum. 



16 and 18 BROAD STREET, NEW YORK. 



The Mutual Life Insurance Company 



OF NEW TORK. 



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 18S 



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 I 7,275,301 68 



A gain in income of 3,096,010 06 



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



A gain in surplus of.. 1,645,622 i i 



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



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



The M"i:;;',Jile Insurance Company 



to Policy-^''^''''/.'',''^-'/.;..^^.;-^ Organization $272,481,839 82. 



''V .3" " 



Has Paid 



KIMBALL'S 



STRAIGHT CUT 



CIGARETTES. 



Unsurpassed in quality. 



Used by people of refined taste. 

 Highest award at Brussels, 1888. 

 The finest smoking mixtures are of 



ifieen First Prize Medals. 

 WM. S. KIMBALL & CO., 



Rochester. N.Y. 



ESTERBROOK'S 

 STEEL PENS. 



OF SUPERIOR AND STANDARD QUAL1T7. 

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



For Sale by all Stationers. 



THE ESTERBROOK STEEL PEN CO., 



Works : Oamden, N. J. '.ifi John St., Ne%v York, 



GOOD NEWS 

 TO L ADIES. 



of- 



up orders for our celebrated 

 Teas and Coffees, and secure 

 a beautiful Gold Band or Moss 

 Rose China Tea Set, Dinner Set, 

 i Rose Toilet Set, "Watch, Brass Lamp, 

 jr wphster's mctionary. ForfuUparticularsaddresa 

 Till-: UREAT AiMKRU^XiV TK A CO., 

 P. O. Bos 289. 31 and 33 Vcsey St., New "iork. 



P'ARIS EXPOSITION. 



The Cheque Bank ia'ues Cheques, either singly or 

 put up 111 Boots, tor Ihe special use of VlSlTOltS 

 toihe PARIS KXPOSITIOIV, who can cash tiie 

 same at upwards of seventy Banking Houses, 

 siiueted In different parts of Paris, wilboiit 

 tliai-ge. 



Visitors' mall matter can be addressed to them. 

 Care ot the t^oclete Generale, 4 Place de lOpera, op- 

 posite the Grand Hotel, where English Is spoken. 



Every Cheque that is issued by the Cheque Bank 

 Is EQUiiL TO CASH, as Bank Notes are, for the 

 Bank's Capital. Guarantee Fund and Customers' 

 Balances are invested in Britlsli Ooverii- 

 lueiit Securities, or held In Cash in the Bank 

 of England , and can be cashed in every town In 

 Europe without charge. 



For Handbook containing list ot 2,5 00 Banking 

 Houses who cash the cheques, free of charge, apply 

 to 



CHEQUE BANK, Limited, 



Capital, £100,000. Guarantee Fund, £27,000. 

 Trustees, The Eight Honorable John Bright, M.P., 

 The Right Honorable Karl Beauchamp. 

 NO. 2 "WALiIi STREET, NEVF YORK. 



Visitors to Europe and Paris Exposi- 

 tion should carry a book containing Cheque Bank 

 Cheques, which are absolutely safe and cheaper 

 than Letters of Credit, and much more convenient ; 

 are payable on presentation trithout charge at 3,500 

 Banking Houses and 250 ot the principal Hotels In 

 Europe. 



OF 



GRAVITY 



DROP 



ANNUNCIATORS. 



DON'T FORGET THE 



DUST-PROOF BELLS. 



HAZAZER & STANLEY, 



32 Frankfort Street, N Y. 



Cq|0HIIM(3 



\ IN THE WORLD, i^ 



ffiOLPiJIPALg) 



Used bv thousands of first-class 

 mechanics and by such m-innfact- 

 urere as Pullman P.itace Car Co., 

 Mason & Hamlin Organ and Fianu 

 Co., &c., Ac. 



Repairs Everything. 



Its success h&3 brought a lot of 

 Imitalors copying ua in every way 

 possible. "^ .... 



manufactured solely by the 



RUSSIA CEMENT CO. 



GLOUCESTER, MASS. 



Send 10c. and dealers' card who 



does n't keep it in Block, for eample. 



FOOD 

 ADULTERATION 



And its Detection. With photomicrographic plates and 

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

 pagas, 8vo, cloth. Price, $3.50. Circulars and Catalogues 

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



12 Corllandt St., New York. 



