Dram /​ ounce

In the apothecaries' weight for solids, eight drams make one ounce. The dram, written dr., is the unit alchemical recipes use again and again for powders and herbs. The solid scale runs from grains to scruples, drams, ounces and pounds.

These measures, and the signs that go with them, are offered to add color to a campaign and to explain how alchemists weigh and measure their ingredients.