SCIENCE. 



[Vol. XV. No. 374 



C ALICRAPH 



GREATEST SPEED! 

 BEST FOR MANIFOLDING. 



100,000 Daily users 



THE MOST DURABLE. 

 PRICE, - EIGHTY-FIVE DOLLARS. 



For account or speed contests and 

 Cii-cwlurs, address, 



THE AMERICAN WRITING MACHINE GO. 



HARTFORD, CONN. 



BRANCH OFFICES:-23T Broadway, New York. 



14 West 4th Street, Cincinnati, O. 



1003 Arch Street, PhilaoeEphia. 



THE 



Bell !e 



COMPANY. 

 98 MILK ST,, BOSTON, MASS. 



This Company owns tbe Letters 

 Patent granted to Alexander Gra- 

 liam Bell, March 7tli, 1876, No. 

 174,465, and January SO, 1877, 

 No. 1§6,7§7. 



The Transmission of Speech by 

 all known forms of ELECTRIC 

 SPEAKING TELEPHONES in- 

 fringes the right secured to this 

 Company by the above patents, and 

 renders each individual u-^er of tel- 

 ephones, not furnished by it or its 

 licensees, responsible for .vuch un- 

 lawful use, and all the conse- 

 quences thereof and liable to suit 

 therefor. 



DRESS GOODS. 



AVe sliall Iiave the follon'ing specialties 

 on sale tliis vTeet In our new salesroom, 

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One line of Imported [Pattern Dresses, 

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 eacli. 



4 2-lncl> all wool Tennis Stripes and 

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Plain Colored Co$>liime Cloths, 54 

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40-Iuch all %TOo] t1)Iack and vfhite 

 Shepherd Checks, at 45 cents per yard. 



Homespuns and Worsted Stripes, 54 

 inches wide, at 75 cents per yard. 



'jAMESMcCREERY&CO. 



BROADWAY AND ELEVENTH STREET, 



N E W YORK. 



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 CO., 



Works : Oamden. N. J. -^6 John St.. Sew York. 



If you have $100M1, 000 or $1,000,000 

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Inquiiy costs nothing. Reference by per- 

 mission to The Editor of Science. 



PATENTS. 



During ITIarcIif Aprtl and May my fees due 

 I only on allowance if desired Write 

 I WM. H. BABCOCK, 



I 513 Seventh St., "Washington, D.C.. P. O Box 220. 

 Formerly Examiner in Patent Office. 

 FOURTEEN YEARS^ PRACTICE. 



DRESS FABRICS. 



EDglisli Tweefls. 



PLAIN AND FANCY MOHAIRS. 



Plain and Mixed Camel's Hair. 

 FRENCH CASHMERE D'ECOSSE. 



PRINTED CHALLIES. SILK WARP HENRIETTAS. 



Gazines, Striped and Bordered. 



ALL-WOOL FRENCH SUITINGS. 

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EMBBOIDEEED ROBES. 



Jotoadwocn CAJ ]^tlb 6L 



NEW YORK. 



PHYSICAL, ELECTRICAL 

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Of High Grade. 



FOR SCHOOLS AXO COLLEGES^ 



Send fob List of Catalogues. 



eUEEN & CO, Philadelphia. 



MINERALS. 



Cabinet Specimens and Collections, 



Our stock is very complete in fine specimens foi 

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GEO. L. e:ngi.i$h Sc CO., 



Healers In ITIlnerals, 



1512 Chestnut Street, Philadelphia, Pa. 



CHANCE FOR ALL 



To Enjoy a Cup of Perfect 

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pou dp of Fine Tea. either Oolong. Ja- 

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r Powder. For full particu.- 



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TH.S GREAT AMERICAN" TEA CO 



31 and 33 Vesey St., New York. 



THE HIGHEST AWARD OF A GOLD MEDAL 

 at the PARIS EXPOSITION was secured by the 



REMINGTON 



STANDARD TYPEWRITER 



which has been for FIFTEEN TEARS THE STANDARI), 



and Embraces the Latest and Highest Achievements of Inventive Skill. 



WYCKOFF, SEAMANS & BENEDICT, 327 BROADWAY, NEW YORK. 



