A system of natural philosophy, designed for the use of schools and academies (1845)
Moffat, J[ohn] M. [from old catalog] · Philadelphia, E. C. Biddle · leaf 145
e western as on the eastern side of the island of GreatBritain, and that the average quantity may be reckoned at 30inches. According to this estimate, the whole discharge fromthe clouds in the course of a year, on every square mile of the sur-face of Great Britain would at a medium be 1,944,633, or… … ORIGIN OF SPRINGS. 143 2,000,000 tons. This gives about three thousand tons of water foreach English acre, a quantity equal to 630,000 imperial gallons.* 58. It may he questioned whether the very limited extent ofany observations which can be made by means of rain-guagesaffords ground for perfect…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
