CORNELL . UNIVERSITY LIBRARY BOUGHT WITH THE INCOME OF THE SAGE ENDOWJvIENT FUND GIVEN IN 189I BY HENRY WILLIAMS SAGE Date Due ^N - CIRCULATION LIBRARY DATE DUE i^ij^^ifgi atc^^PHoee^ PRINTEDINU.SA Cornell University Library PN 2061.D55 1883 Paradox of actini 3 1924 027 175 961 Cornell University Library The original of tliis book is in the Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924027175961 BOUGHT WITH THE INCOME FROM THE SAGE ENDOWMENT FUND THE GIFT OF Henrg W. Sage 1891 Ajii^'^/ ao g/^/f,