SCIENCE. 



[Vol. XII. No. 297 



Patent Pocket C: 



THE WORLD. {^ 



;goldmedal§) 



h-y thousands o£ first-class 

 C3 and by eucIi manufact- 

 Pullmin Palace Car Co., 



;. [latnl n Organ and Piano 



Repairs Everything. 



Ttssu cess has brought a lot of 



8 cqpj ngus in every way 



pos. ui Remcir.ber that THE 



O Lt f EN LI^ELePage's Liquid 



Clue inanuEa turedeolelyby the 



RUSSIA CEMENT COo 



(_I )L CENTER, MASS. 

 Send 10c and dealers' card who 



\V^M. S. 



KIMBALL'S SATIN STKAIGHT 

 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. 



KIMBALL <te CO. 



W.H.WALMSLEY&CO. 



K. & J. BECK, 



1016 Chestnut Street Phila. 



Microscopes and all 

 Accessories and Ap- 

 paratus. Photograph- 

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 graphic Apparatus and 

 Outfits. 



Spectacles, Eye 

 Glasses, Opera and 

 Marine Glasses, etc. 



Illustrated Price Lisi 

 mailed free to any ad- 

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 in corresponding with us. 



J. GR 



621 Sixth Avenue, N 



Established 1852, 



MAKER OF 



Microscope Stands, 

 Oil Immersion Object- 

 ives and Abbe Con- 

 densers for Bacterial 

 and Histological work, 

 of Objectives, Camera 

 Lucida and other ac- 

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GreatAmerican 



ICOOD NEWS 

 TO L AD8ES. 



rof- 

 get 

 up orders for our celebrated 

 Teas and Coffees, and secure 

 a beautiful Gold Band or Mosa 

 Rose China Tea Set, Dinner Set, 



_ Rose Toilet Set, Watch, Brass Lamp, 



or Webster's Dictionary. ForfuUpartlcularsaddresa 



DRV WARNER'S 



HEAtTH UNOERV^IAR, 



Made :Of pure Camers Hair 

 and fine Australian Wool. 



It is the best Underwear made 



it is the most durable. 



It is free from all dye. 



it will not irritate the skin. 



it has special electric prop- 



■■ ,;-'.erties^' ' ■ 



it is a protection against 

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: Manufactured in all styles for Men, 

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WaTnerBrb's, 359 Broadway, N.Y. 



GET 



THE NEW 



ACWIE N°- 5 

 WIICROSCOPE 



Comv>lete, witli higti-class 

 lenses. 1 in. and 1-5 in. 



$28.00. 



Send for complete catalogue 

 B. and sample of Tlie Micro- 

 scopical Bulletin. 



JAMES W.QUEEH& CO. 



MatierB of the Acme Microscope!. 

 924 Chestnut St., Phili. 



HYDRAULIC 



ELEVATORS and 

 WATER MOTORS. 



Send /or New Catalogue 



Tuerk Hydraulic Power Co. 



CHICAGO. NEWYORK, 



39 Dearborn St, 1 2 Cortlandt St- 



i:(>7 PARK , PLACE , NEWIfORK- 



TILESION & HOLLINGSWORTH, 



64 Federal Street, Boston. 



Manufacturers of Fine Book Papers for let- 

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"THE ECLIPSE." 



COPYIt^G APPARATUS. 



One thousand copies in black. No 



special pen. no special paper, no 



stencil required. The " Eclipse " 



reproduces the natural handwriting 



so exceedinely faithful that in most 



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i' taken for ordinary written letters. 



1 Specimens and circulars on applica- 



FELIX F. DAUS & CO., 



69S Broadway, New York. 



REMINGTON 



STAfvDARD 



Typewriter. 



speed Contests. 



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

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Send for circular and price-list. 



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



UNDERWOOD'S 

 WRITING FLUIDS, 



Used by United States Government in aU Departments, 

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J. UNDERWOOD & CO. 



163 La Salle St., Chicago. 30 Ve^sey St., N.Y. 



Schools. 



Connecticut, Darien. 



MRS. MEAD'S HOME SCHOOL FOR GIRLS 

 and Young Ladies. Reopens October 4, 1888. 

 College preparatory and special 

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New York, Tarrytown-on-the-Hudson 

 AT MOUNT HOPE LADIES SEMINARY, 



$300 pays board and 

 and art only extras. Be: 

 Opens Sept. 26th. 



ROBT. C. FLACK. A.M., Principal. 



per school year, 

 advantages with home 



Mu 



V 



New York, 20 Central Park, West at 620 St. 

 AN NORMAN I.VSTITUTE (Founded 1857). 

 Home and Dav School for Ladies and Children. 



MME. VAN NORMAN, Principal. 



Vermont, Burlington. 



Boarding 

 Prep:ires for College or Business. 

 Military drill. Terms moderate Fifty-seventh half- 

 year opens September 3, 1S88. Send for catalo 



VERMONT EPISCOPAL INSTITUTE 

 School for Boys, 



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



MAGIC 

 LANTERNS 



reopticons and the Best Vic 

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 ;ntific Exhibitions. Best app 



ratus, new views. Largest stock. Reduced prices. 



Years' Practical Experier-ce. Illus. Catalogue Free. 



GEO. H. PIERCE, 

 136 S. Eleventh St., Philadelphia, Pa 



Whitall's Planisphe es locate and name all the 

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 given minute of time. Every prr-^on should possess aset, 

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 for Schools, private, public, and kindergarten._ Ask yo 



jokse 1( 

 nanagei 



Wr 



nd Static er, oradd 

 Race St., Philadelphia, Pa. 



.T.Cooper 



JACK NUMBERS and complete sets of leading Mag- 

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 Schoharie, N.Y. 



