...This river is about 85 yards wide, and navigable for canoes from its confluence with the Coanza to about six miles above the point where it receives the Luinha... 
David Livingstone 「Missionary Travels and Researches in South Africa」
...The voyage alone to Gondokoro, the navigable limit of the Nile, was likely to occupy about fifty days, so that a large supply of provisions was necessary...
W.H.G. Kingston 「Great African Travellers」
...Owing to the immensity of this wilderness, the well-nigh total lackof railroads and also of navigable waters, excepting the Yukon, itwill not be thoroughly "opened up" for a quarter of a century...
William T. Hornaday 「Our Vanishing Wild Life」
...In these circumstances Hammurabi gave pressing orders that the obstruction was to be removed and the canal made navigable within three days...
L.W. King and H.R. Hall 「History Of Egypt, Chaldæa, Syria, Babylonia, And Assyria In The Light Of Recent Discovery」
...Early in the forenoon the swamp and vale were overflowed, and had every appearance of a large navigable river...
David Collins 「An Account of the English Colony in New South Wales, Vol. 1」
...]
Too-gee described a large fresh-water river on the west side of Ea-hei-no-maue; but he said it was a bar river, and not navigable for larger vessels than the war canoes...
David Collins 「An Account of the English Colony in New South Wales, Vol. 1」
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