...284), has a steeper declivity than some other great rivers, reaching even 7 inches per mile...
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 2」
...The slope is not uniform, being somewhat determined by thenatural surface, so that it is steeper in some parts than in others...
Gerard Fowke 「Archeological Investigations」
... road grew steeper...
Various 「Astounding Stories of Super-Science February 1930」
...For 20 miles we toiledover as distressing a country as can be imagined, each succeeding sandridge assumed a steeper and more rugged character, and the horse withdifficulty pulled the cart along...
Charles Sturt 「Expedition into Central Australia」
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