ON A METEOROLOGICAL NOMENCLATURE. g 15 



orderly converging march of the animals assembling to Noah. 

 Be this as it may, the observations on a connection between 

 this phenomenon and the variations of the wind are highly 

 interesting. In verifying them by future cases it will be 

 proper to ascertain a fact, which seems to have been taken 

 for granted: viz. that' the lines of cloud continue to range 

 between the same points, while the wind below is veering : 

 for it is possible, extensive as they are, that they may un- 

 dergo a change of direction. The phenomenon is rare, in 

 this champaign district, and I believe frequent near the sea, 

 or among mountains. I must protest, convenience notwith- 

 standing, against calling a thing past or future, which is 

 present, and the subject of actual observation. # 



A revolving dau. A reverse revolving day. These are Revolving, Sc 



. . reverse rcvoiv* 



not more happily formed. A reader meeting with the lat- iugday, 



ter, and not having the vocabulary at hand, might attempt 

 to solve the puzzle by considering, that day and night are 

 produced by a revolution of the Earth on its axi*. A reverse 

 revolving day must then be one in which, that revolution be- 

 ing reversed, the sun had risen in the west and set in the 

 east! To the terms a direct or a reverse revolution of the 

 wind there can be little objected. These are prognostics of 

 long standing, and like others, taken singly, are not infalli- 

 ble. We had a reverse revolution here on the 4th inst. (as I 

 recollect) followed by a dry, though cloudy day, with an eas- 

 terly current. 



The term sour day, I think, we may leave to the painters. Sour day. 

 It is matter of taste rather than of science, to define it. Dis- 

 soking air or constitution is obviously connected with an hy- Dissolving air. 

 pothesis, and that an exploded one. Solution, in its only 

 proper sense (as the result of a chemical attraction between 

 the ponderable base of air and water) has been found to en- 

 ter for little or nothing into the case of Evaporation. 



Hound clouds, shaded clouds, piled clouds, rolling clouds, Various epi- 

 white clouds on a gray ground, &c. I do not see the ad van- thetsof cloud*, 

 tuge to science of these attempts to substitute description 

 for definition. The piled cloud will be the shaded, or some 

 other, when it comes toward the zenith ; and the shaded will 

 be light in the horizon opposed to the sun. As lor the rollr 

 }?ig cloud I haye net yet detected it ; and it seems too poetic 



cal, 



