t the beginning of the gan-beater." In Praetor- twelfth century, however, we i u s ' s "Organographia" begin to hear of keys— (plate xxv.) we find an il- small levers which when de- pressed push in the wooden lustration of such key- boards attached to the old sliders and when released organ at… … struck with the thumb an«l (technically called "pal- lets") for admitting the little finger, and in 1499 an wind to the pipes instead bf organ was constructed for with slides. At first a s-nall the same city with a key- board whose octave was T-shaped button, somewhat like those of the concertina,…
Inches · Illustrated · Rays · Patents · Scientific American · Feet · Gas engine · Fountain pen · American supplement · Roentgen rays · American december · Reduced silver · Type writing · Carcel lamp · Electric smelting
Internet Archive · Public domain (published before 1931). Free to use for anything.
