7 
Maal 4 
REFERENCE TO COLOURING 
12,000 Feet 
e000 
3000 + 
600 * 
SEA LEVEL 
100 Fathoms 
Contours are also engraved to show 
depth of 1600 fathoms, but, not coloured. 
\ 
\ 
|, 1#ERNOSTER ROW, LONDON. 
t 
w 
45 
John Bartholomew & Co., Edin? 
