Stumme’s time calculator; an accurate time calculator for time and discount .. H Social sciences (General)
Hall’s interest table. For the use of county clerks, treasurers and auditors in computing interest on delinquent taxes and redemptions of lands sold for taxes in states where said rate of interest is fifteen per centum H Social sciences (General)
Tables of interest and discount, and business man’s assistant; showing the interest or discount on any sum of money between $1 and $10,000, from one day to three years, at six per cent .. H Social sciences (General)