SCIENCE. 



[Vol. XII. No. 2i 



_ Pullman' Palace Car Co,, 

 ]Vi ibon & Hamlin Organ and Piano 

 Co , &.C., &c. 



Repairs Everything. 



has brought a. lot of 



copyingiis in every way 



.le. Remember that T H E 



GENUINE LePage's Liquid 



s manufactured solely by the 



RUSSIA CEMENT CO. 



GLOUCESTER, MASS. 

 Send 10c. and dealers' card who 

 'csn t. keep it in slock, for Eample. 



KIMBALL'S SATIN STRAIGHT 

 CUT CIGARETTES. 



People of refined taste who 

 desire exceptionally fine cigar- 

 ettes should use only our 

 STRAIGHT CUT, put up 

 in satin packets and boxes of 

 los. 20S. 50s. and loos. 

 14 FIRST PRIZE MEDALS. 



^WM:. S. KIMBALL & CO. 



J. «..- , 



681 Sixtli Avenue, New 



Established 1852. 



Microscope Stands, 

 Oil Immersion Object- 

 ives and Abbe Con- 

 densers for Bacterial 

 and Histological work, 

 of Objectives, Camera 

 Lucida and other ac- 

 cessory apparatus, 



W. H. WALISLEY k CO. 



SUCCESSORS TO 



K. & J. BECK, 



1016 Chestnut Street Phiia. 



Microscopes and all 

 Accessories and Ap- 

 paratus. Photograph- 

 ic and Photo-Micro- 

 graphic Apparatus and 

 Outfits. 



Spectacles, Eye 

 Glasses, Opera and 

 Marine Glasses, etc. 



Illustrated Price List 

 mailed free to any ad- 

 dress. Mention Science 

 in corresponding with us. 



HYDRAULIC 



ELEVATORS and 

 WATER MOTORS, 



Sendfcr New Catalogue 



Tuerk Hydraulic Power Co. 



CHICAGO, NEWYORK, 



39 Dearborn St. 12 Cortlandt St. 



ESTERBROOK'S 

 STEEL PENS. 



OF SUPERIOR AND STANDARD QUALITY. 

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



For Sale hy all Stationers. 



THE ESTERBROQK STEEL PEN CO., 



Works: Oamden, N.J. -26 Johu Rt„ New York. 



I^EWS 



ro LADIES. 



leatest indueemeutsever of- 



d Kow's your time to get 



mjr- orders for our celebrated 



M- IS and Coffees, and secure 



fcl^'A I I cautiful Gold Band or Mosa 



EOS 1 se China Tea Set, Dinner Set, 



joI 1 1 I ! s 1 jilet Set, "Watch. Brass Lamp, 



)r Wehster s dictionary For full particulars address 



laiL GREA.T '\MERICAIV TEA <:0.. 



P O Loi2S9 SlaudSSVeseySt., NewXorls:. 



TILESTON & HOLLINGSWORTH, 



64 Federal Street, Boston, 



Manufacturers of Fine Book Papers for let- 

 ter press and cut printing. The aUention of 

 publishers and printers is called to our Ivory 

 Finish (no gloss) paper. A boon to studious 

 men. reflecting no dazzling glare injurious to the 

 eyes. Approved and used by the best educa- 

 tional publishers in the country. 



Positio7is Vacmz t. 



Inquiries from employers in want of those skilled in any 

 department of science in its widest sense will be inserted 

 inthis column WITHOUT CHARGE. 



The labor and expense involved iy ascertaining what 

 positions are open, in gratuitously advertising them, and 

 in attending to the correspondence of applicants, are in- 

 curred in the interest and for the exclusive benefit of 

 S2<bscTibers to Science. 



Applicants should enclose the necessary postage for 

 forwardins: their letters. 



A NEW CORSET. 



JAMES McCKEEKY & CO. are 

 introduciug- a Corset whicli they 

 recommend as the best they have 

 ever had at the price — one dollar. 

 They are made in white and in 

 drab, are silk-stitched, edg-ed with 

 lace, and are perfect fitting. 



MAIL ORDERS ARE PROMPT- 

 L,r EXECUTED. 



JAMES McCHEERY H CO. 



BROADWAY AND ELEVENTH STREET, 



NEW YORK. 



JP. I>. Sc Co. 



(Royle's f atenf) 



SELF-POURING 

 COFFEE and TEA 



POTS. 



Fhimply pi 



Pours oat the Tea 

 trated. Does away entirely 

 the Teapot. SAVES at leas 

 the Tea propertiooatelj better. Send Tor Lit 



PAINE, DIEHL & CO., Philad 



nios- 



the drudgery of lifting 

 least 25 per , ■ - — 



Calbcraph WRiTisyc Machine 



Price, $QC.OO 



It Standut the Head! 



20,000 in daily 

 use. 



:TI£E JVLOST: 



I*ractical, 

 Durable 

 and Rapid 



WRITING MACHINE 



FOR THE 



Office, Library f and 

 __ Family^ 



printed matter, etc., address ^^^^ — ^ 



THE AMERICAN WRITING MACHINE CO., 



New York Branch, 237 Broadway. HABXFORB, CONN. 



-A=R=HART= -JOS^TRIPP. 



S1lujstrv\tiVe 



AND ADVERTISINQ 

 PURPOSES 



Bi^HCH-AT 7.2a■C^lE5TMUT.5Ts 

 )P]11tADELP111?\-PA" 



=fi=|^RK Placed 



