Drumming :: Drumming (n.) The act of beating upon, or as if upon, a drum; also, the noise which the male of the ruffed grouse makes in spring, by beating his wings upon his sides..
Drummond Light :: Drummond light () A very intense light, produced by turning two streams of gas, one oxygen and the other hydrogen, or coal gas, in a state of ignition, upon a ball of lime; or a stream of oxygen gas through a flame of alcohol upon a ball or disk of lime; -- called also oxycalcium light, or lime light..