sixty-four first years of the century. The year 1740, however, was a year of extraordinary scarcity. These twenty years preceding 1750 may very well be set in opposition to the twenty preceding 1770.

As the former were a good deal below the general average of the century, notwithstanding the intervention of one or two dear years; so the latter have been a good deal above it, notwithstanding the intervention of one or two cheap ones, of 1759, for example. If the former have not been as much below the general average as the latter have been above it, we ought probably to impute it to the bounty. The change has evidently been too sudden to be ascribed to any change in the value of silver, which is always slow and gradual. The suddenness of the effect can be accounted for only by a cause which can operate suddenly, the accidental variation of the seasons.