...Livingstone is about sixty years old, though after he was restored to health he appeared more like a man who had not passed his fiftieth year... 
Henry M. Stanley 「How I Found Livingstone」
... The former were to be set free on the seventh year; and the rest, of whatever nation, on the fiftieth, or on the year of Jubilee...
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
..." The result has been the National Association for the Advancementof Colored People and The Crisis and this book, which I am finishingon my Fiftieth Birthday...
W. E. B. Du Bois 「Darkwater」
...The legs are merely vestiges, for, though they consist of three tinycylindrical joints, they are barely a fiftieth of an inch in length...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...Young of each species grow rapidly for the first month, and attain, inthat time, the largest percentage of their adult size; they grow rapidly up tosometime between the thirtieth and fiftieth days...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...There would certainly be an interval: theinterval would be the fiftieth part of a second (the time a stone takesto drop ⁄th of an inch), but that is too short to be securelydetected without mechanism...
Oliver Lodge 「Pioneers of Science」
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