Show abacut in the development oe the and west evall 0 the geology cal survey in contribution pos ible devicco is be g used by which vater may be brought to the surface some of these are cruda but effective and inheres ing is afford ng an ind ca t on ol 01 the ingenuity of the people voiad po er is largely use and where practicable water is employed emp loed ore of the most interesting devices bein that wh ch undershot ater wheels are placed in swiftly flowing streams comet mes these water teela operate pump but more usually chev earn up on thur n us email in which vater 13 la sed from tt e surface of the and erupted i to the u th ough it flo s b gravit to the field fl heels of this kind are as old as civi ac 1 eie employed lo 10 before the dawn of 1 11 egypt i d in the r baat they adie been re n in almost part of the and i almost numberless have atten apted to ul t 11 atenta i pon these bel oving in each ibe that they had brouil t to 1 a oe v device the d 11 u individuals ld ma veil t e ed when the are i formed that invention of being tid v dates bik into the arid dional past |