OCR Text |
Show How Rainfall Is Recorded. The government gauge for recording record-ing rainfall consists of a cylinder two feet high, eight inches In diameter, upon which a funnel of the same diameter fits. Within that is a brass cylinder of the same height, the diameter diam-eter a little over two and. one-half Inches. In it is a measuring tube, the area of which compared with the area of the funnel is ns ten to one, so that when a one-hundredih of an inch falls in the funnel it becomes one-tenth one-tenth of an inch in the measuring tube. |