rule out

1. the expre ion of a uniformity among fenomena; a minor law; a formula. Archibald’s rule, the rule stated by E..D. Arch-bald as to the rate of diminution of windzvelecity with altitude. Broun’s rule, the rule stated by J. Allan Broun, rn 1845, as to the direction of the movement of lower cumulus scud, ete. Buchan’s rule, the rule fermulated by A. Buchan, in 186s, as fellows: “Stand with your left hand toward the center of low bare meter and your right hand toward the high, then, in the northern hemuisfere, the wind will be en your back.” Espy’s rule, the rough rule stated by Espy, about 1834, that the altitude (in feet), above the observer, of the base of cumulus cloud is 300 times the depre ion of the dewzpernt (in Fahrenheit degrees) at the locality of the observer. Galton’s anticyclonic rule, see under anticyclonic. Meldrum’s rules, the rules formulated by C. Meldrum for guidance in hurricanes in the Indian Ocean. These rules were elaborated by Blanford, in 1888. i Stevens on's rule, a rule or formula stated by Stevens on as to the velocity of wind, over level land-surfaces r1ncreasing with the altitude.? run zan n. the buttock and tail (taken together) of an. aerofeil or other streamline body; the stern or afterbedy of an airship of streamline form: as, the flow has net time to close in round the *run: distinguisht from entrance.