Starting the Siphon
A Siphon can be started by inserting one end of a tube in the liquid and sucking at the other end. It is more convenient to apply suction by means of a side tube as shown to prevent the liquid from entering the mouth.
A. Privat Deschanel Elementary Treatise on Natural Philosophy Part I. Mechanics, Hydrostatics, and Pneumatics (New York: D. Appleton and Company, 1884) 233
Courtesy the private collection of Roy Winkelman