ocr: On 26r Leonardo describes a number of practical applications of the theoretical study of water pressure, particularly as iti applies to swamp: drainage. Here, as elsewhere, he lists al number of"cases" - -in this instance, 18-to be examined in the future. Leonardo begins the page with directions on . how to empty a swamp by means of"siphonic action A and ends with a sketch describing the weight of water in a cylindrical container B upon which he has marked off measurements similar to those on - a modern measuring cup.
