SCIENCE. 



iii 



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WEBSTE 



The following from Webster, page 1164, shows 

 the value of the Illustrative Definitions in 



Webster's Unabridged Dictionary 



The New $50 Microscope 



(See Illustration.) 

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SCIENCE 



A WEEKLY JOURNAL OF SCIENTIFIC PROGRESS. 



Vol. II, No. 56, 



July 23, 1 881 



CONTENTS. 



Rules for Claiming Warner's Reward for the Discovery of Comets (Edit.); An Inter- 

 national Scientific Directory (Edit.); Annual Meeting of the American Asscciatioi 

 for the Advancement of Science, 1881 ; Contributions to Comparative Psychology, 

 by Dr. S. V. Clevenger; ^Ether, by Professor Pliny Earle Chase; Comet C, 

 1881 ; Comet B, 1881, with eight original illustrations, by Professor Edward S. 

 Holden; The Unity of Nature, by the Duke of Argyll ; Ancient Planetary Rngs, 

 Volume, Mass and Density, by Edgar L. Larkin ; Correspondence; Dr. E. C. 

 Spitzka's Reply to Dr. J. J. Mason; General Notes; Weekly Meteorological 

 Report for New York City, by Dr. Daniel Draper. 



Subscription, Four Dollars a Year. 



Single Numbers, Ten Cents. 



1, flyingjib; 2, jib; 3, fore-top-mast-stay sail; 

 4, fore-course; 5, foretop sail; 6, foretop-gallant 

 sail; 7, fore-royal; 8, fore sky-sail ; 9, fore-roy- 

 al studding sail; 10, foretop-gallant studding- 

 sail; 11, foretop-mast studding-sail; 12, main- 

 course; 13, maintopsail; 14, maintop-gallant 

 sail; 15, main-royal; 16, main sky-sail; 17, 

 main royal studding-sail; 18, main top-gallant 

 studdmg-sail; 19, maintop-mast studding sail; 

 20, mizzen-course; 21, mizzen-top sail; 22, 

 mizzen-top-gallant sail; 23, mizzen-royal; 24, 

 mizzen sky-sail; 25, mizzen-spanker. 



The pictures in Webster under the 12 words, 

 Beef, Boiler, Castle, Column, Eye, Horse, 

 Moldings, Phrenology, Ravelin, Ships, 

 (pages 1164 and 1219) Steam engine. Tim- 

 bers, define 343 words and terms far better 

 than they could be defined in words. 



New Edition of WEBSTER, has 

 118,000 Words, 3000 Engravings, 

 4600 New Words and Meanings, 



Biographical Dictionary 



of over 91 OO Names. 



Published by G. AC. MERRIAM, Springfield, Ma* 



