Weeds on Gravel Walks
Weeds on gravel walks may be destroyed and prevented from growing again by a copious dressing of the cheapest salt. This is a better method than hand-pulling, which disturbs the gravel and renders constant raking and rolling necessary. One application early in the season, and others as may be needed, while the weeds are small, will keep the walks clean and bright

The Farm and Household Cyclopędia - circa 1888