[*Transcriber's Note:
The following errors found in the original have been left as is.
Chapter I, 14th paragraph:
drop double quote before 'It is said';
Chapter IV, 1st paragraph:
'so similar than' read 'so similar that';
Chapter IV, table of Hebrew numerals (near footnote 144):
insert comma after 'shemoneh';
Chapter V, table of Tahuatan numerals (near footnote 201):
'tahi,' read 'tahi.';
Same table:
' 20,000. tufa' read '200,000. tufa';
Chapter VI, table of Bagrimma numerals (near footnote 259):
'marta = 5 + 2' read 'marta = 5 + 3';
Same table:
'do-so = [5] + 3' read 'do-so = [5] + 4';
Chapter VII, table of Nahuatl numerals (near footnote 365):
'90-10' read '80-10';
In paragraph following that table:
'+ (15 + 4) × 400 × 800' read
'(15 + 4) × 20 × 400 × 8000 + (15 + 4) × 400 × 8000';
In text of footnote 297:
'II. I. p. 179' read 'II. i. p. 179';
*]


THE MACMILLAN COMPANY
NEW YORK · BOSTON · CHICAGO · DALLAS
ATLANTA · SAN FRANCISCO