MEASURE Ternary, or Triple, is that wherein the fall is double to the rise; or where two minims are played during a fall, and but one in the rise. To this purpose, the number 3 is placed at the beginning of the lines, when the measure is intended to be triple; and a C, when the measure is to be common or double. This rising and falling of the hands was called by the Greeks arís and trís. St Augustine calls it plausus, and the Spaniards compas. See ARSIS and THESIS.
Powder MEASURES in Artillery, are made of copper, and contain from an ounce to 12 pounds: these are very convenient in a siege, when guns or mortars are
loaded with loose powder, especially in ricochet firing, Measure &c.