...It was impossible even to follow the course of theMercy, or to ascertain in what part of the mountain it took its source... 
Jules Verne William Henry Giles Kingston 「Abandoned」
...It was important to ascertain thechannels between the sandbanks and reefs, that buoys might be laid down,since this little creek was to be the harbour...
Jules Verne William Henry Giles Kingston 「Abandoned」
...This mode of communication presented two very real advantages; firstly,because it enabled them to ascertain that Ayrton was at the corral, andsecondly, that he was thus not left completely isolated...
Jules Verne William Henry Giles Kingston 「Abandoned」
...Their companions were soon beside them, but could only ascertain onething, that not only the islet, but all the beach below Granite House,was covered with one uniform sheet of white...
Jules Verne William Henry Giles Kingston 「Abandoned」
...And before they were able to ascertain what it was, a luminous train, accompanied by a hissing sound in the air, called their attention from the donjon to the ground...
Alexandre Dumas, Pere 「The Man in the Iron Mask」
... “I may employ all means, then, to ascertain the truth...
Alexandre Dumas, Pere 「Ten Years Later」
..." And again reverting to sign languagehe sought to ascertain where Tarzan was...
Edgar Rice Burroughs 「Tarzan the Terrible」
... “But how could you ascertain that?” inquired the king, full of admiration...
Alexandre Dumas, Pere 「Louise de la Valliere」
... With that thought in his mind, Sir Percy was not likely to give up the attempt to ascertain for himself whether Armand had tried to communicate with him or not...
Baroness Orczy 「El Dorado」
...But I’ll go and ascertain...
Baroness Orczy 「El Dorado」
...We were unable to ascertain the longitude of the lake, as our watches were useless; it may be between 22 Deg...
David Livingstone 「Missionary Travels and Researches in South Africa」
...This we could not ascertain on our first visit, and, consequently, called the river after the town "Sesheke"...
David Livingstone 「Missionary Travels and Researches in South Africa」
...There it is seen standing the whole day, and I never could ascertain how it fed...
David Livingstone 「Missionary Travels and Researches in South Africa」
...The greatest patience and perseverance are required, if one wishes to ascertain his position when it is the rainy season...
David Livingstone 「Missionary Travels and Researches in South Africa」
... The caravan stopped, and I walked forward to ascertain the cause from the two natives...
Henry M. Stanley 「How I Found Livingstone」
...This fact will ascertain the treatment of itself...
Thomas Clarkson 「An Essay on the Slavery and Commerce of the Human Species, Particularly the African」
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