UBE'S DICTIONARY 



OF 



ARTS, MANUFACTURES, AND MINES 



CONTAINING 



A CLEAE EXPOSITION OF THEIE PEINCIPLES AND PRACTICE 



BY 



ROBERT HUNT, F.R.S. 



KEEPER OP MINING- BECOKD8 



FORMERLY PROFESSOR OP PHYSICS, ROYAL SCHOOL OF MINES, ETC. 

 AUTHOR OP 'RESEARCHES ON LIGHT' 'THE POETRY OP SCIENCE 1 ETC. 



assisted Ij/ 



F. W. RUDLER, F.G.S. 



and by numerous Contributors eminent in Science and familiar with ifarivfacturtt 



faitlj upfourbs nf ftfamig-mie liunhrfb' ^irgrairiiTCfs an 



SEVENTH EDITION 



COMPLETELY REVISED AND GREATLY ENLARGED 



IN THEEE VOLUMES 

 VOL. III. 



LONDON 



LONGMANS, GREEN, AND CO. 



1875 



AJl rights reserved 



