Harker, Alfred, 1859-1939 Metamorphism : a study of the transformations of rock-masses / by Alfred Harker, with 185 diagrams - London : Methuen & Ltd., 1932 - ix, 362 p. : ill., diagrs. ; 22 cm. Includes index ISBN: Rs. 33.00 Subjects--Topical Terms: Rocks, Crystalline and metamorphic Dewey Class. No.: 552.4