Text ( visual ) : unmediated James Hutton's System of the earth, 1785 ; [James Hutton's] Theory of the earth, 1788 ; [James Hutton's] Observations on granite, 1794 : together with Playfair's biography of Hutton / [James Hutton] ; introduction by Victor A. Eyles ; foreword by George W. White. -- New York : Hafner Press , 1973, c1970. -- xxiii, 203 p : ill., port. ; 24 cm. -- (Contributions to the history of geology ; v. 5). -- "Facsimiles of original editions" ; Includes bibliographical references. -- (BA50014598) ; https://ci.nii.ac.jp/ncid/BA50014598 Other Title(s): System of the earth, 1785 ; Theory of the earth, 1788 ; Observations on granite, 1794. -- Author Heading(s): Hutton, James ; Playfair, John ; Eyles, Victor A. ; White, George W. -- Classification(s): LCC : QE25. -- Subject Heading(s): LCSH : Geology -- Early works to 1800