A TREATISE OE" 



ROCKS, ROCK-WEATHERING 



AND SOILS 



BY 



GEORGE P. MEREILL 



HEAD CUEATOE OF GEOLOGY IN THE UNITED STATES NATIONAL MUSEUM, AND PROFESSOR OF 



GEOLOGY IN THE GEORGE WASHINGTON UNIVERSITY, WASHINGTON, D. C, AUTHOR OF 



" STONES FOR BUILDING AND DECORATION " ; " THE NON-METALUC MINERALS" J 



"CONTRIBUTIONS TO A HISTORY OF AMERICAN GEOLOGY"; ETC. 



THE MACMILLAISr COMPANY 



LONDON: MACMILLAN & CO., Ltd. 

 1913 



All rights remrved 



