Vessels in Communication Small 320×253 Medium 640×505 Large 1024×808 Download Tiff Original 2400×1894 | (897.1 KB) Description This apparatus illustrates the principle stating that liquids tend to find their own level. Keywords communication, Level, liquid, physics, vessel Galleries General Physics Source: A. Privat Deschanel Elementary Treatise on Natural Philosophy Part I. Mechanics, Hydrostatics, and Pneumatics (New York: D. Appleton and Company, 1884) 118