It is a certain amount of water flowing through a measured aperture in a day; it used to be measured in the month Poseideon, so that, naturally, those trials [sc. in classical Athens] which were most important and concerned the most important things used to be held in accordance with it. The water was divided into three parts, one for the plaintiff, one for the defendant, and the third for those on the jury. Also to be considered[1] is what is in Isaeus: he says that in a measured-out day the trials sometimes take place without water, sometimes in accordance with water.[2]