June 15, 1888. J 



SCIENCE. 



Bishops Potter, Stevens, and Robertson ; Presidents Mark Hopkins, Hitchcock, and Barnard; 

 Profs. Parker, Draper, and Beard ; and thousands of the world's best brain workers, have used and 

 recommended CROSBY'S VITALIZED PHOSPHITES, for the relief of Nervous Derange- 

 ments, Brain Weariness, Dyspepsia, and Debility. 



It is a Vital Nutrient Phosph/te, not an inert Laboratory Phosphate. 



56 W. 25tli St., N. Y 



For sale by Dr^iggists, or sent by Mail, Si- 



ta 



,■4 IN the: world. 



:goldmedal; 





11", tlousandaof first-class 



Co ic , ic 



Repairs Everything. 



Its success has brought a lot of 

 imilitors copying us in every way 

 poi, iblL Remember that THE 

 Om.^ GENLlNELePaffc'sLiquid 

 Glue IS manufactured solely by the 



RUSSIA CEMENT CO. 



GIOUC ESTER, MASS. 

 Send mc and dealers' card who 



J. 



6531 Sixth Avenue, ?Jew 1 



Established 1852 



Microscope Stands, 

 Oil Immersion Object- 

 ives and Abbe Con- 

 densers for Bacteria 

 and Histological work, 

 of Objectives, Camera 

 Lucida and other ac- 

 cessory apparatus. 



W. H. WALISLEY & CO. 



SUCCESSORS TO 



LI. & J. BECK, 



1016 Chestnut Street Phila. 



Microscopes and all 

 Accessories and Ap- 

 paratus. Photograph- 

 ic and Photo-Micro- 

 graphic Apparatus and 

 Outfits. 



Spectacles, Eye 

 Glasses, Opera and 

 Marine Glasses, etc. 



lUustraLed Price List 

 mailed /?rf to any ad- 

 dress. Mention Science 

 in corresponding with us. 



GERMAN SIMPLII^IED.— SPANISH SIMPLI- 

 FIED. — Self-taught. 12 Numbers, 10 cents each. Cir- 

 culars free. Prof. A. KNOFLACH, r4o Nassau St., N.Y. 



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 GO., 



Worlia: Oamden. N, J. -^6 John St.. New York. 



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 

 IDS. 20s. 50s. and iocs. 

 14 FIRST PRIZE MEDALS. 



WM. S. KIMBALL & CO. 



|ACK NUMBERS and complete sets of leading Mag- 

 5 aziiies. Rates loiu. AM. MAG. .EXCHANGE 

 Schoharie, N.Y. 



GOOD NEWS 

 TO LADIES. 



reatest 1 



rof- 

 1 your time to get 



fered 



up orders for 



Teas and Coffees, and secure 



a beautiful Gold Band or Moss 



Rose China Tea Set, Dinner Set, 



Gold ijind Mois Rose Toilet Set, Watch, Brass Lamp 



or Webster s Dictionary For full particulars address 



^ TllK GREAT AMBRlCAiV TE.4 <^0., 



P O Boi2S9 SlandSSVeseySt., NewYorK. 



I*. 13. & Co 



(Royle's Patent) 



SELF-POURING 

 COFFEE and TEA 



POTS. 



Pour^ out the Tea tiy ..imply press 

 trarcd Does away entirely with tht 

 ttie Teapot 84>E.S at least 25 per cent, or 

 the Tea proportionately better. Send for Lists. 



PAINE, DIEHL & CO., Philada 



JAYNE k CROSBY LETTER FILE. 



NO MANIPULATINj to open, and is SEtF-CLOSING. 



Any paper can be released by pulling it 



up\\aiilau(l f 01 ward. 

 Steel Wires Nickel Plated. 



Send lor Descriptive Circular. 

 JAYNE & CROSBY, 

 110 Liberty St., Nev/ York. 



If your stationer does not handle our goods, 

 write to us. 



Mann's Reterenee Indexes. 



References to and transcripts or translations of the lit- 

 erature of ANY SUBJECT furnished by B: PICKMAN 

 MANN, Washington, D. C 



Correspondence fee, 50 cents. Explanatory circulars 

 free 



DRESS GOODS FOR TOURISTS. 



JAMES MCCREERY& CO. 



A speciial feature of tlie Dress 

 Department for this week will be 

 the offer of three lines of mixed 

 Woolens, at the following low 

 prices : 



One line of Check and Stripe 

 Suiting-, at 65 cents per yard, 

 worth $1. One line of Twilled 

 Beiges, in Melton effects, at 75 

 cents per yard ; excellent value 

 at $1.25. One line Invisible 

 Plaids, suitable for tourists' dresses, 

 at 85 cents per yard. 



Samples sent on application. 



James McCreery & Co. 



BROADWAY AND ELEVENTH ST., 



NEW YORK. 



TILESTON & HOLLINGSIORTH, 



64 Federal Street, Boston. 



Manufacturers of Fine Book Papers for let- 

 ter press and cut priming. The attention of 

 publishers and primers 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 tlie best educa- 

 tional publishers in the country. 



THE CHERPEST AND BEST 1 



HYDRAULIC 



ELEVATORS and 

 WATER MOTORS. 



Send for Nc: 



Tuerk Hydraulic Power Co. 



CHICAGO. NEW YORK. 



39 Dearborn St. 12 Cortlandt St 



