premise: Australia uses words for things that dont make sense to Americans , like guns are called rooty tooty point and shootys . 
hypothesis: This sort of misnomer leads Carnegie to suppose that to the uninitiated no map is so misleading as that of West Australia where lakes are salt-bogs without surface water , springs seldom run , and native `wells ' are merely tiny holes in the rock , yielding from 0 to 200 gallons .