SCIENCE. 



in 



Electrical Batteries for Medical Purposes 



JHZ ¥/E£TEF(N J^lectfjic ^anufactuf^ijnq £o. 



CHICAGO, 



NEW YORK, 



Manufacturers of and Dealers it 



STATIONARY GALVANIC BATTERIES, PORTABLE HIG 

 ELECTROMOTIVE FORCE BATTERIES, CHLORIDE 

 OF SILVER BATTERIES, GALVANO-CAUTERY 

 BATTERIES, FARADAIC BATTERIES, POCKET 

 BATTERIES, BATH APPARATUS, AND 

 ELECTRODES, 



EDISON'S 



ic Pen & Duplicating Press, 



ftn £xtremely jJseful Invention 



Dr. Butler's Plumbago Rheostat, 



PLIABLE SPONGE ELECTRODES, &c, &c 



DUPLICATING WRITTEN OR PRINTED MATTER. 



CATALOGUES ON APPLICATION. 



000 Copies from a Single Writing, at the Rate of 400 an Hour. 



Address all Orders to 



Western Electric Man'f g Co 



38 Union {Square, 

 — NEW YORK — 

 CITY. ^ 



successfully used by Schools, Colleges, Hanks, Commission Houses, Mercantile Firms, Lawyers, 

 Ministers, Copyists, and every person or firm desiring a number of duplicates of any document. 



10,000 fens now in jJse and tfye Pemand £teadily Jncreasing ! 

 No. 1, $25.00; No. 2, $30.00 ; No. 3, $35.00. 



Full Description and Samples of Work sent on Application. 



EDISON'S ELECTRIC PEN AND PRESS, 



38 Union Square, New York City. 



JEWETT'S 



Portable Crock Filter. 



Put. Nov. 16, 1S69, Oct. 15, 1S78. 



Patent Pending. 



The Latest Improvement 



consists in placing the filtering material 

 in a separate vessel or crock. The ad- 

 vantage being this, viz ; 



That whenever the filter part gives 

 out, a new crock can be obtained, which 

 will make the whole complete a-, when 

 first purchased. We, therefore, recom- 

 mend parties at a distance (instead of at- 

 tempting to get the F ilter re-packed; that 

 they should purchase a new filter crock, 

 the cost of which is moderate, and no 

 more than the cost of repacking. 



ORNAMENTAL STYLE. 



No. 71, Porcelain Reservoir, 4^ quarts $7.25 each 



" 72, fA " g.25 " 



73, 11 11.00 " 



74* 16 " 13.00 " 



75i " 26 " 15.50 " 



JEWETT'S 



l'OPTABLE CROCK 



F I LT E R 



WITH PORCELAIN-LINED 



COOLER. 



This is the only Filter having the Pat- 

 e t Removable Filtering Cup attached, 

 which holds all sediment that would oth- 

 erwise pass into the filter. 



Th s celebrated F.lter will take river, 

 lake, pond, rain or other impure water, 

 and render the same of 



f Sparkling Transparency 



and Purity. 



STAINED OAK. 



No. 61, Porcelain Reservoir, 4}^ quarts „ ., $6.75 each. 



i ; 62. - - 7 y 2 " :.. 8.75 - 



,i 63, 11 " 10.50 



" 64, " 16 " 12.50 u 



" 65, '• " 26 " -. 15.00 " 



READ THE TWO MOST CONVINCING TESTIMONIALS. 



Isaac S. Williams & Co., 728 Market Street, Philadelphia, Pa. — We have sold your "Patent Water Filter" for the last s« years. Our sales 

 01 that time having reached upwards of five thousand, and in no instance have we heard of any failure in performing all you claim for them. 



BOARD OF HEALTH, Washington^ D. C.,Aug. ■>■;, 1877. 

 WEBB & Bl 1 R -. -[ am just in receipt of your favor of yesterday, requesting my opinion of the '" Jewett Filter" purchased of you sev- 

 eral months ago 1 r my personal use, and am pleased to say that it has fully answered your expressed estimate of its value. As a cleanser and 

 purifier of drinking water it is certainlv not excelled by any mechanical airangement known to me. The foregoing remarks aiilv equally 

 *o the large Filter ok the same make purchased for the Board ok Health. 



Very respectfully yours, CHRIS. C. COX, M. D. 



Manufactured only by JOHN C. JEWETT k SONS, Buffalo, New York. 



*OR Rale in New York City by KINO, BRIGGS & CO., 596 Broadway. J. H. BALDWIN & CO., 21 Murray Street. L. HEYNIGER, 

 18 Fulton Street. CHARLES JONES, 920 Broadway. LEWIS & CONGER, 601 Sixth Avenue. 



The Original and Genuine. 



ALL OTHERS ARE IMITATIONS. 



Over 1 00,000 now in use. 



.c!<:iuwledged the o r ly complete Filter 

 ,nd Cooler in iho world. 



"""•- auijj. 



