TY - BOOK AU - Mason,Shirley L. AU - Mather,Kirtley F. TI - A source book in geology U1 - 550.82 PY - 1939/// CY - Cambridge PB - Harvard University Press KW - Geology KW - History N1 - The aim has been to provide the material which must serve as the basis for a picture of seventeenth, eighteenthand nineteenth century geology."--Author's pref; Includes index ER -