PRO FORMA INVOICES, ACCOUNT SALES, BILLS OF LADING,
AND BILLS OF EXCHANGE.

ALSO

AN EXPLANATION OF THE GERMAN CHAIN RULE,
AS APPLICABLE TO THE CALCULATION OF

EXCHANGES.

BY

WILLIAM ANDERSON.

NEW-YORK:

D. APPLETON & COMPANY, 200 BROADWAY.

PHILADELPHIA:

GEO. S. APPLETON, 164 CHESNUT-ST.

1851.