166 NATURE [ Fune 26, 1873 
once formed on the equator, there would be intro-moving | the depression and the steepness of the barometric 
masses of air proportioned in violence to the amount of | gradient down which they rush to reach the point of 
~ 
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2 
fs 
hl 8 
a 
YW 
WEATHER-CHART OF GREAT BRITAIN, BEFORE “ ROYAL CHARTER” STORM, 
Full-feathered arrows show Polar current; half-feathered arrows show Equatorial current; dark-coloured surface 
not reported by vessels or land-observers. : 
J Ditit 3 t aj mods 
parallels of latitude appears to be, that the:equatorial belt’ 
is a belt of xon-interference. 
1 ‘west barometer. ©The true reason that no reat cyclone 
ha: ever been formed nearer the equator than the third 
. 
