24 MADEIRA METEOROLOGIC. PART in. 



of cloud, or a freedom from visible vapour at that 

 time in that latitude, implying much drought. 



Finally, Jerusalem has a mean annual quantity of no 

 more than -^jths of cloud ; and even that is so thinned 

 away in summer time that two of the months then have 

 less than xtjth of cloud each ; wherefore the almost blind- 

 ing intensity of the sunshine, with lip-cracking drought 

 in the air, at that period, in latitude 32, and at 2500 feet 

 above the sea-level, may just be imagined ! 



In the matter of actual rainfall, touching both its 

 depth and the duration of its falling, Scotland has the 

 most, Jerusalem by far the least of the four stations ; 

 their returns standing thus : Scotland, 39 inches, with 

 1 79 days of falling in the course of a year ; Lisbon, 3 1 

 inches, with 142 days of falling ; Madeira, 29 inches, with 

 79 days of falling ; but Jerusalem only 16 inches, with 50 

 days of falling. 



As respects the directions from which the winds 

 blow, they are in Scotland mostly from the west, then 

 the south, the east, and the north ; also at Jerusalem, 

 mostly from the west, then the north, the east, and the 

 south ; in Lisbon, most from the north, then the west, 

 the south, and the east ; but in Madeira, most from the 

 north, then the east, the west, and the south. 



While for the mean force of the wind at each of the 

 four localities the velocity returns are as follow : Scot- 

 land, the stormy indication of 17*6; Jerusalem, ir6; 

 Lisbon, 10*4 ; and Madeira, the mild quantity of only 7*6 



