ADDENDA TO 
RARA ARITHMETICA 
WHICH DESCRIBED IN 1908 SUCH EURO 
PEAN ARITHMETICS PRINTED BEFORE 1601 
AS WERE THEN IN THE LIBRARY OF THE 
LATE GEORGE ARTHUR PLIMPTON, BY 
DAVID EUGENE SMITH 
GINN AND COMPANY, PUBLISHERS 
BOSTON AND LONDON, 1939