288 Scientific Proceedings, Royal Dublin Society. 
hydrostatic pressure of the water in the lowest bottles, will not 
again act. Thus bottle 1 in the figure transfers the first tenth to a 
bottle 1’ placed beneath it; bottle 1 then receives the second tenth. 
After this bottle 2’ takes up the third tenth, ete. Obviously, too, 
one siphon in the reservoir may supply quantities which are 
multiples of the contents of the reservoir to two or more bottles 
placed at different levels. 
