Philadelphia: University of Pennsylvania Press, 1940. Hardcover. 8vo. Blue cloth with gilt spine lettering, price-clipped dust jacket. viii, 220pp. Frontispiece. Very good/very good. Mild jacket edgewear and rubbing, with tiny chips at corners and spine sunned. Item #47060
A tight, nice first edition of this volume in the "Pennsylvania Lives" series -- a biography of the famed astronomer, optical instrument maker and university chancellor.