The hills are hachured and in some instances contours at intervals of 50 metres are introduced.
The pottery designs of this period were often hachured patterns, with the thin filling lines surrounded by heavier boundary lines.
The hachured hills are based upon contours, and are of admirable commensurability.
The hills are hachured, the light, in the case of the loftier regions, being supposed to fall obliquely.
