For such a precise and comprehensive table of measures, here exists a great deal of imprecision: what is a “heaping” tablespoon? In 1903, when people had such things as dessertspoons that differed from tablespoons, and when coffeecups differed from teacups, these things made reliable sense. The gill has disappeared as a measurement from contemporary cookbooks, replaced by fractions of a cup.
How many drops in a gallon?
Kentucky Receipt Book, Mary Harris Frazer, 1903