334 H. MUIIN. AdETEOROLOGY. [2nd ARC. EXt>. FraM 



CLOUD-MOTION 



By counting the number of cases in which direction of the motion 

 of the lower clouds (strato-cumulus, nimbus, cumulus, cumulo-nimbus 

 and stratus) has been noted, and reducing the numbers to the 8 direc- 

 tions from which the clouds come, we obtain the following Table. 



NE 



SE 



SW 



W 



NW 



Total 



January 8.5 



February l.i 



March 15.5 



April 15 



May 87 



June 58.5 



July 39-5 



August 18 



September 08 



October 77 



November 1 20 



December o 



1-5 

 4-5 

 8 



7 

 26.5 



17-5 

 24-5 

 II-5 

 17.5 

 14-5 

 9 



D 



3 

 6 

 6 



23 

 20 



14 



7 

 i6.5 



8.5 



9 



0-5 



1-5 

 12.5 



4 

 13 

 13-5 

 32-5 

 22 



81.5 



13 



7 

 3 



2.5 



14 

 10 

 38.5 



43 



83.5 



62 



14.5 

 12 



32.5 

 13 



0-5 



5 



6 

 26 

 16.5 

 32.5 



9 



6-5 



o 



5.5 

 2.5 



Year 



421 



144 118.5 



156 i 326 



4-5 



9 



20.5 



15 



4 

 3-5 



6 

 3 



05 

 3 



5-5 

 12 



36 



4 



29 



27 



58 



51 



"3 



224 



277 

 222 



93 

 157 

 151 



61 



9 



62.5 104 



1443 



Cloud-molion from the north prevails in seven months, and from 

 the south or soulh-east in Ihree months. The least frequent motion is 

 from norlh-west and from east. There are generally two maxima of 

 frequency, one from the north and one from the south or soulh-east. 

 On comparing the motion of the lower clouds with the wind, we have 

 the following principal and secondary maxima. 



January 

 February 

 March 

 April . . 

 May . . 

 June . , 



July ■ . 

 August , 

 September 

 October . 

 November 

 December 



