Carr, Herbert Wildon 1857-1931. A theory of monads : outlines of the philosophy of the principle of relativity / H. Wildon Carr. - London : Macmillan and Co., Limited, 1922. - viii, 351 p. ; 23 cm. Includes index. Subjects--Topical Terms: Relativity.Monadology. Dewey Class. No.: 149 / CAT 1922