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EXPLANATION oF COLOURS
mm inches mm ache
- ord TW rr -
= So 135+ a EE -
2 750%
se 74 ul
180 Toot as Ta ET 80 60 1 20 a 2u 10 60 80 100 120 140 160
_ —  — ee =
Znllis Projects Wt AK Johnston. limited. Edinburgh
The arrows show the direction of the prevailing winds