Edes v. Goodridge , 4 Mass. 103 ( 1808 )

But the Court said it was clear that the principal sum must be reduced by the scale of depreciation, and interest cast upon its reduced amount to the time of the endorsement, and in this manner the sum due on the mortgage must be ascertained.

Judgment was accordingly entered that, on payment of the sum of 114 dollars 43 cents, the mortgage should be discharged