SCIENCE. 



, _ 7 CQLD MEDALS. ^;5Sl 



5 ' O i.f^ Glouceeter, Masa. K?-— --^ 



SUSSiaOementOOi,Saniple20CBtampfl^5i;:;22?' 



These glues are used in tlie Smithaouiau lustitute 

 at Washington for all its work of mounting speci- 

 mens—by the Government Arsenals and Depart- 

 ment Buildings, by the Pullman Palace Car Co., 

 Mason & Hamlin Organ and Piano Co., and by 

 fhousande of first-class manufacturers and mechan- 

 ics throughout the world, for all kinds of fine work. 

 Pronounced STRONGEST ADHESIVE KNOWN. 

 Sold in tin cans for mechanics and amateurs, and 

 in bottles for family use. The total quantity sold 

 between Jan., 1880, and Jan., 1885, in all parts of the 

 world amounted to over 32 million bottles. Be 

 sure and get the genuine LePage's made oiily hy 

 Russia Cejient Co. 



The Travelers Insurance Company 



of Hartford, Conn., organized 1864, issues both Lz/e 

 Polz'czes and Accident Policies. Only large accident 

 company in America, Only $5 a year to professional 

 and business men for each $1,000 "insurance, with $5 

 weekly indemnity. Has paid policy-holders nearly 

 $11,000,000. All policies non-forfei table. All claims 

 paid, without discount, and immediately on receipt of 

 satisfactory proof. 



KIMBALL'S SATIN STRAIGHT 

 CUT CIGARETTES. 



•i^« desire 



"WM. 



People of refined taste who 



sire exceptionally fine cigar- 



'h ettes should use only our 



\j STRAIGHT CUT, put up 



in satin packets and boxes of 



lOs. 20s. 50s. and loos. 



" 14 FIRST PRIZE MEDALS. 



S. KIMBALL & CO. 



j^''t^5ra°T°iQ^.^J 





Mann's Reterence Indexes. 



References to and transcripts or translations of the lit- 

 erature of ANY SUBJECT fumished by B: PICKMAN 

 MANN, Washington, D. C. 



Correspondence fee, 50 cents. Explanatory circulars 

 free. 



W.e.WALMSLEY&CO. 



SUCCESSORS '. 



K. & 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. 



Illustrated Price List 

 mailed free to any ad- 

 dress. Mention Science 

 in corresponding with us. 



MARVELOUS 



MEMORY 



DISCOVERY. 



"Wholly unlike artificial systems. 

 Any book learned in one reading. 



Recommended by Mark Twain, Richard Proctor, 

 the Scientist; Hon. W. W. Astor ; Judah P. Benja- 

 min; Dr. Minor, &c. Class of lOo Columbia Law stud- 

 ents ; two classes of 200 each at Yale ; 400 at University 

 of Penn., Phila,, 400 at Wellesley College j 350 Oberlin 

 College, and three large classes at Chautauqua University, 

 &c. Prospectus post free from, 



PROF. LOISETTE, 237 Fifth Ave., New York. 



AMERICAN 

 BONDS, 



$1,000,000 



8' 



INVESTMENT CO. 

 MORTGAGES. 



$15,000,000 

 INVESTED 

 Without loss. 



CAPITAL. 

 ORGANIZED 



1872, 



SEND FOR PAMPHLETS AND EEFERENCES, 

 ISO 3V.a.SSl-a.TT SJT^tUIET, ST.TE". 



10 Milk St., Boston, a", Kini! St., M.iiicliester, England. 

 60 Princes Street, Edinburgh, Scotland. 



"How to Strengthen the Memory." 



Rev. E. L. Kelly, of Paterson, N. J., writing of Dr. 

 Ho!brook's book, " How to Strengthen the Memory : 

 or, Natural and Scientific Methods of Never Forgetting, 

 says; "I have read this treatise, this gem, and find a 

 mine of wealth hidden in its pages. By it I was enabled 

 last evening to learn the poem ' Stabat Mater.' in Latin. 

 It took a little time, but the results were marvelous." 

 Catalogue and prospectus free. 



Mailed to any address on receipt of $1 , by 



M. L. HOLBROOK CO., 13 Laight St., New York, 



[Vol. XI. No, 257 



ICOOD NEWS 

 TO LADIES. 



jr Wfbstcr's Dlctlonnry. Forfull |i^irtliular5;i,ldrc8S 



Till! GREAT V.^IERICAIV TEA «0., 



P. O. Box 289. 31 and 33 Vescy St., Xew York. 



A TEMPORARY BINDER 



for Science is now ready, and will be mailed 

 postpaid on receipt of price. 



Cloth - - 50 cents. 

 Half Morocco - 75 cents. 



This binder is strong, durable and 

 elegant, has gilt side-title, and allows 

 the opening of the pages perfectly 

 flat. Any number can be taken out 

 or replaced without disturbing the 

 others, and the papers are not muti- 

 lated for subsequent permanent bind- 

 ing. Filed in this binder, Science is 

 always convenient for reference. 



N. D. C. HODGES, 



47 Lafayette Place, New York. 



JOHfi H)\5T1N0S= --A=R=11i\RT= nJOS^TRIPP, 

 Fpes't. OetTTlana|?p, VPpei't 



^ illustr-ATiVe 



AND ADVERTISINQ 



BR^MCH-AT 7^a■C^^E5TMUr^T! 



NE.W YOR.K.J"^ 



