Prof. Dove's Outlines of a general Theory of the Winds. 235 



this sometimes takes place; in general they traverse the horizon 

 passing by the east." 



6. Northern Temperate Zone of the Atlantic Ocean. (Romme's 

 Tables of Winds, Tides, and Currents, vol. i. p. 56.) 



" According to an English captain of an East Indiaman, the 

 dominant winds from the parallel of 30° N. to the frigid 

 zone are in this sea from the west or WSW. He re- 

 marked that a great north or north-west wind which ends 

 with a calm is followed by a south wind, which brings rain, 

 and which acquiring much force ranges to the west and 

 NW. or N. If these latter winds become violent they turn 

 sometimes to NE. and blow for several days together, or end 

 in a calm to be followed by a south wind. If this latter is 

 rather westerly it is accompanied with rainy weather and 

 squalls, and often comes back to the south with rain." 



7. Freiberg in Saxony, 1806. (Lampadius's Systematical 

 Manual of Atmospherology, page 189.) 



" How exceedingly changeable are the winds in Germany ! 

 yet I have remarked a kind of periodical movement in them, 

 which is as follows. I suppose the wind to blow from the south, 

 with a clear sky. The barometer falls, the weather becomes 

 thick, rain follows. In the mean time the wind becomes 

 westerly. The rain still continues, and the barometer rises. 

 The wind changes to the NW. Partial rain ensues. It grows 

 colder. The barometer still rises, and the wind becomes N. 

 and NE. The barometer is now at the highest point, the sky 

 is serene, and the severest cold possible in the season prevails. 

 The wind veers to the E. and the barometer falls a little, 

 but the weather as yet remains clear. The w T ind veers to the 

 SE., the barometer still falls, the warmth increases again. 

 The wind then changes to the S., and the warmth reaches the 

 highest degree agreeable to the season ; the barometer falls, 

 and we come back again to the first point. There are annually 

 several such periods in every season. Sometimes it will take 

 several weeks to complete this rotation of the wind through the 

 whole compass, sometimes but a few days. The wind will 

 very rarely change in a direction contrary to that above men- 

 tioned. In general all changes from the left to the right of 

 the horizon are more frequent with us, and a southerly wind 

 is the least frequent. There certainly exists a primary cause 

 of this, which is, however, concealed by many casualties." 



Lampadius has however gone beyond this excellent descrip- 

 tion of the phenomenon. As Sturm had done before him, he 

 has founded meteoromantic rules upon the supposed correct- 

 ness of this law, and in his "Contributions to Atmospherology" 

 has examined to what degree they may be depended upon. 



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