SCIENCE. 



[Vol. XI. No. 271 



UNEQUALLED for CEMENTINC^--%s 



wood, (rl'iHR, ctilnfi, paper, loather, &c. Always iBpaKFsii 

 r eady for use. Promt tnccd sfron^erf glue k.iown. f^~~p^^ 



ilussiaCement Co . , S^pTeloc^tamps ^^^^ 



These glues are used in the Smitlisouiau Institute 

 at Washiugtou foi' 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 

 thousands of flrst-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 sriLLiON bottles. Be 

 sure and get the genuine Lepage's made only by 

 Russia Cement Co. 



W.H.WALISLEY&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. 



DRESS TRIMMINGS. 



JAMES MCGREERY& CO. 



wish to announce that they are 

 now displaying on their retail 

 counters their entire importation 

 of Dress Trimmings, comprising 

 full lines of Jet Passementeries, 

 Ornament Gimps, Panel Gimps 

 and Fringes, Persian Band Trim- 

 ming, Metal Embroidered Gal- 

 loons, Changeable Tinsel Trim- 

 mings, Black and Colored Mohair 

 and Silk Braid Trimmings, 

 Mourning Trimmings, Colored 

 Metal Embroidered Panels, 

 Beaded Grenadines, Garnitures, 

 Embroidered " Tulle " Draperies, 

 Buttons, Notions, and Small 

 Wares. Dress-Makers' Findings 

 a specialty. Ribbons, Parasols, 

 and Sun Umbrellas. 



Wholesale and Retail. 



Special attention given to mail 

 orders. 



JAMES McCEEERY & CO. 



BROADWAY AND ELEVENTH ST., 



NEW YORK. 



KIMBALL'S SATIN STRAIGHT 

 CUT CIGARETTES. 



vhu 



MSB'^Mi:' ^"'^' should use only 



c^tMw^ .STRAIGHT CUT, put 



%\j/ in salin packets and boxes of 



7i3£S=^^l»' lOs. 20s. 50s. and loO'.. 



^ '■ 14 FIRST PRIZE MEDALS. 



WM. S. KIMBALL c\^ CO. 



GOOD NEWS 

 TO LADIES. 



your time to get 



(1 Coffee-^, .ind secure 



ful (_,uld l;and or Moss 



t. Dinner '^U, 



I Pose lollct Set. AA .ntr h, r.._ „ 



rl\ hsfei s liiitiomry Forfull ptrtlcularsaddrcss 

 (»RLlr ^MBFKAIV 'ID*. « O.. 



\ ^J 31 ana33AeseySt .Ivcw^orlc 





THE POLYCLINIC for 1888. 



WILL CONTAIN 



More original and clinical articles prepared especially for it by prominent writers than any other 

 i\Iedical Journal of its size and price. Arrangements have b=en made to secure reports of clinics 

 by well-known lecturers in New York, Chicago and other cities as well as in Philadelphia. A 

 number of articles on practical subjects will also appear. A series of articles by Dr. J. Henry C. 

 Simes, on various phases of Diseases of the Urinary Organs, will be worthy special attention. 

 Prof. Thos, J. Mays will contribute a number of articles on Therapeutical Subjects. 



REGULAR CONTRIBUTORS. — Chas. H. Burnett," m.d. (0/a/o^y), Arthur Van 

 Hariingen, M.D. (Skin Diseases), John B. Roberts, M.D. (Surgery), Thos. J. Mays, m.d. (Thera- 

 peutics), J. Henry C. Simes, M.D. (Surgery), Chas. K. Mills, M.D. (Nervous Diseases), and others. 



Clinical Lectures, Papers, and Original Articles appeared by the following gentlemen during 



f Penna. 

 Penna. and Child. Hospital. 



of Penna 



N. Y. Eye and Ea 



Bantock (Geo. Granville, f.r.c.s ), London. 



Pepper (Wm., m.d.), Prof. Pract. of Med. Univ. of Pa. 



Carter (Dr. Landon Gray), Prof, of Men. and Nerv. 



Dis., N. Y. Polvclinic. 

 Robison (Dr. John A. 1, Rush Med. Coll., Chicago. 

 Pavy (F. W.. f.r.s.). London. 



Price (Dr. Joseph), Phys. to Preston Retreat. Phila. 

 Longstreth (Dr. .Morns), Pathologist to Jefferson Med. 



Coll. 

 White (Wm. Hale, M.D.,). Guy's Hospital, London. 

 Ashhurst (John. Jr.), Prof. Clin. Surg., Univ. of Penna. 

 Packarf (Dr. John H.), Surg, to Penna. Hospital. 

 Parvin (Theophilus), Prof. Obst. and Dis. of Women, 



Jefferson Med. Coll. 

 Wyeth (John A.). Prof, of Surg., N. Y. Polyclinic. 

 Reese (Dr. John J.). 

 Spender (John Kent, m.d.), Bath, England. 



Annual Subscription, One Dollar. 



Each new subscriber sending us one dollar, in advance, will receive a copy of a book by Prof. 

 Lionel S. Beale, F.R.s., on " Urinary and Renal Derangements and Calculous Disorders, with 

 hints on Diagnosis and Treatment.'' 356 pages. Strong paper covers. 



We believe a year's trial will cjnvince any one that The Polyclinic is the best as well as 

 the cheapest Medical Periodical of its class. 



P. BLAKISTON, SON & CO., Publishers, 1012 Walnut St., Philadelphia. 



Goodell (Prof. Wm.), Ui 

 Meigs (Dr. A. V.), Phvs 

 OsIer(Prof. Wm.),Univ 

 Willard (Dr. De Forest). 

 Mittendorf (Dr. W. M.), Surg. 



Infirmary. 

 Sinkl-r (Dr. Wharton). 

 Browne (Lenno.x, F R.C.S.), London. 

 Brubaker (Dr. A. P.), Dem. of Physiology Jefferson 



Medl. Coll. 

 Steele (D. A. K., m.d.), Prof. Orth. Surg. Coll. Phys. and 



Surg., Chicago. 

 McMurtrie (Dr. L. S.), Danville, Ky. 

 Tyson (Dr. Jas.), Prof. Pathology, Univ. of Penna. 

 Hartshorne (Dr. Henry). 

 DaCosta(Dr. John C). 

 Henry (Dr. F. P.), Phys. to Episcopal Hospital, Phila. 





; SIluistrative 



AND ADVERTISINQ 



BRANCH -AT 75a■C^^E3Tl1UT^Ti 



5PiilhADELPrtl?\-P/^ 



ir-FfpARK Place-) 



