The same combination is possible if hills engraved in the ordinary manner are printed in colours, as is done in an edition of the i-inch ordnance map, with contours in red and hills hachured in brown.
(a) in outline, with contours in black, (b) with hills hachured in brown or black, and (c) printed in five colours.
The hachured hills are based upon contours, and are of admirable commensurability.
The hills are hachured and in some instances contours at intervals of 50 metres are introduced.
The hills are hachured, the light, in the case of the loftier regions, being supposed to fall obliquely.