...was the gloriousstretch of the Cameroon estuary, with a line of white cloud lying veryneatly along the course of Cameroon River... 
Mary H. Kingsley 「Travels in West Africa」
...An occasionalcrow visits my estuary at low tide, but,though the bird would be a match for anysingle rook, I never saw any fighting betweenthem...
Frederick G. Aflalo 「Birds in the Calendar」
...It is ofa somewhat different nature to the foregoing,and occurred on the estuary of the river whichI used frequently to net with good results...
Anonymous 「The Confessions of a Poacher」
...Late in July she reached the estuary of theriver; and for the remaining months ofsummer fished in the bay, finding there apleasant change in her surroundings...
Alfred W. Rees 「Creatures of the Night」
...Then she doubled back towardsthe estuary, and the baffled sportsmen sailedaway across the bay...
Alfred W. Rees 「Creatures of the Night」
...In addition to “atap” they also brought otherthings for trade, sometimes fish from the sea whichwere generally uneatable, and sometimes delicious prawnssix or eight inches long from the river estuary...
A. F. R. Wollaston 「Pygmies and Papuans」
...He would make a journey to the settlement, and, swimming the estuary, search if haply any casks of biscuit had been left behind in the hurry of departure...
Marcus Clarke 「For the Term of His Natural Life」
...Lieutenant Bowen caused them toanchor on the right side of the estuary, in a little bay called RisdonCove...
Alexander Sutherland 「History of Australia and New Zealand」
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