Planet Wheel Small 320×266 Medium 640×532 Large 1024×852 Download Tiff Original 2400×1996 | (407.6 KB) Description The exterior wheel of the sun and planet motion of gears. Keywords Galleries Gears Source: William Dwight Whitney The Century Dictionary and Cyclopedia: An encyclopedic Lexicon of the English Language (New York, NY: The Century Co., 1889)
