PLATE VIII. 



SO 



Sd 



45 



IQ- 15- 



20- 



293 



29 5 



y^ 



^^ 



m 



u> 



K 



A 



/: 



/ 



T 



VA 



\ 



2Si9\ 



6$ 



^_ 



% \ 



se?.. 



\A 



/ 



\ 



y. 



55 



Red need from Special Chart prepared at the Meteorological Office.] 



South-Westerly Type of Weather. 



Isobars are shown by black lines, with indications of the height of the barometer. 

 Wind. — Arrows flying with the wind, show direction and force, thus : — 



>- = forces 5 to 7 (velocity, 28 to 40 miles per hour). 



^ = forces I to 4 (velocity, 8 to 23 miles per hour). 



T^ol. I.] [To face p. 180. 



