An index to interest: containing, I. The largest tables of simple interest that have yet been made publick; shewing the same, at once, for any number of Days in the whole Year, and thence Annually to 20 Years, at all the usual Rates. II. A Table of Discount for any number of Days not exceeding 365. III. Two Tables shewing, by Inspection, the present Worth of Annuities and the Purchase thereof; all done in Vulgar Numbers without Decimals. IV. An easie Table for the valuation of any number of Years Lapsed in a Church or College-Lease of Land, shewing the Fines payable at one View. V. Tables of the Amount and present Worth of any Sum of Money, and of Annuities to 61 Years, and Rules to apply them for 122 Years. Also The full Use of all the Tables; and how the same may be calculated and examined by Vulgar, Decimal, and Logarithmical Arithmetick, and the Simple Interest also by Practice. Likewise easie Rules for Valuation of 1, 2, and 3 Lives. Together with a new invented circle for the easie finding the number of days contain'd between any two in the year. Useful for Lawyers, Merchants, Scriveners, and all others who Receive and Pay Interest-Money. The second edition, corrected and amended. By E. Hatton, philomath