SCIENCE. 



[Vol. XII. No. 2c 



HEALTH UNDERWEAR, 



Made of pure Canriers Hair 

 and fine Australian Wool. 



It is the! best ilnderwear made 



It isthe most iJurable. 



It is free from all dye, 



It will not irritate the skin. 



It has special i^^ectric prop- 

 erties. 



It is a protection against 

 colds, catarrh, rheuma- 

 tism and malaria. 



Manufactured in all styles for Men, 

 Women and Chiidren. For sale by all 

 leading mercliarits. Catalogue, witH 

 prices, sent on application. 



Warner Brg's, 359 Broa(lway,CY. 



MEDAL AWARDED ! 



mumi SPEEO_QN RECOeOl! 



126 words psr minute, errors excluded. 



T. v.. Osboruc, winner of interiialiiiual con- 

 test Bt Toroiilo, wrole on llie i;iili;irai)li kk riling 

 Slacliine C:.0 noidi in fivK minutes thus gnin- 

 ins fur the Calignl li ''" '■hampioi^ship of lit 



anufactared solely by thi 



RUSSIA CEMENT CO. 



GLOUCESTER, MASS. 

 Send 10c. and dealers^ card who 



W.H.WmSLEY&CO. 



SUCCESSORS TO 



B. & J. BECK, 



IC16 Chestnut Street Phiia. 



Microscopes and .tIi 

 Accessories and Ap- 

 paratus. Photograph- 

 ic and Photo-Micro- 

 graphic Apparatus and 

 Outfits. 



Spectacles, Eye 

 Glasses, Opera and 

 Marine Glasses, etc. 



Illnsliated I'rice List 

 mailed free 10 any ad- 

 dress. Mention Science 1 

 in cOrrespondiniJ with U's 



For full .ind 

 rHE AIV3ER! 



ic-coimt of .".bove test, address 

 CAM WRITING MACHINE CO., 

 ITARTFORD, CONN. 

 >rk Branch. 237 Broadway. 



:3MGIC LANTERNS 



■-.^^^lO P T iC O N S 



ItofTsg-h+odLs colleges - p*^ 



ND PUBLIC ENTERTAINMENT.' 



J. GRUNOW 



631 Sixth Avenue, New T 



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, 



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. 



^'^^"W^M'^iD'ou^mi'FA'KC- AND . < 



■ ~~=3) PgEglVE^^flS- 



ESTERBROOK'S 

 STEEL PENS. 



OF SUPERIOR AND STANDARD QUALITY. 

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



For Sale by all Stationers. 



THE ESTERBROOK STEEL PEN CO., 



Works : Camden, N.J. ^26 John St., New York. 



Whitair 

 Planets, E 



Planispheres locate and name all the 

 rs, and Constellations visible at any 

 .f time. Every person should possess a set, 

 i obtain useful and interesting knowledge. Beli- 

 otellus. Geographical Astronomical Instruments 

 for Schools, private, public, and kindergarten. Ask your 

 Bookseller and Stationer, or address Wm. T, Cooper, 

 manager, 307 Race St., Philadelphia, Pa. 



REMINGTON 



STANDARD 



Typewriter. 



Speed Contests. 



Cincinnati, .July, 25, '88. Highest speed on legal 

 work New Yokk, Aug. 2, '88. Highest speed on 

 correspondence. Tokonto, Aug. 13, 'SS. (Interna'! 

 Touruainent lor World's Championship.) 1st and 

 2ud Prizes, business correspondence. 1st and 2nd 

 Prizes, legal testimony (gold and silver medals). 



Send for c'rcuUr and price-list. 



WVCKOFF SEAMANS & BENEDICT. 327 Broadway, N, Y. 



GOOD NEWS 

 TO LADIES. 



"^TeatestTn3ucement^ver of- 

 fered. Kow's your time to get 

 up orders for our celebrated 

 '■^""T and Coffees, and secure 



.-^s Rose Toilet Set, Watch, Brass Lamp, 

 I'ictionary. For full particulars address 

 REAT AMERICAN TEA CO., 



^9. 31 and 33 Veeey St., New Xort. 



^^^7 PARK PMEE,NEWYORK^ 



SCIENTIFIC BOOKS. 



Catalogue of Books relating to Civil, Mechanical 

 Electrical, and Mine Engineering, and Manufacturing 

 Industries sent free to any address. 



E. & F. N. SPON, 



12 Cortlandt Street, New York. 



Schools. 



MRS. MEAD'S HOME SCHOOL FOR GIRLS 

 and Young Ladies. Reopens October ^, iS88. 

 College preparatory' and special 

 Languages, and Science. 



New York, Tarrvtown-on-the-Hudson. 

 AT MOUNT HOPE LADIES SEMINARY, 



$300 pays board and tuitions per school year. Mu 

 and art only extras. Best advantages with home ca 

 Opens Sept. 26th. 



ROBT. C. P'LACK, A.M., Principal. 



New York, 20 Central Park, West at 62D St. 



VAN NORMAN INSTITUTE (Founded 1857). 

 Home and Day School for Ladies and Children. 



MME. VAN NORMAN, Principal. 



Vermont, Burlington. 



VERMONT EPISCOPAL INSTITUTE. Boarding 

 School for Boys. Prepares for College or Business. 

 Military drill. Terms moderate Fifty-seventh half- 

 year opens September 3, 1888. Send for catalogue. 



H. H. ROSS, A.M., Principal. 



