...Although about fifty years old, he still maintained a youthful vigor cultivated by exercise... 
Vicente Blasco Ibanez Charlotte Brewster Jordan 「The Four Horsemen of the Apocalypse」
...stigmatized the slave-trade "as utterly unworthy ofthe Christian name;" and at the same time, although proscribedby the laws of every civilized State, the trade was flourishingwith pristine vigor...
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...The Bakalahari retain in undying vigor the Bechuana love for agriculture and domestic animals...
David Livingstone 「Missionary Travels and Researches in South Africa」
...The climbing plants display great vigor of growth, being not only thick in the trunk, but also at the very point, in the manner of quickly-growing asparagus...
David Livingstone 「Missionary Travels and Researches in South Africa」
...The healthful vigor that I was enjoying about this time enabled me to regard my surroundings admiringly...
Henry M. Stanley 「How I Found Livingstone」
...She was rumpled and muddy, with flying hair and thick walking shoes and the air of bustle and vigor which had crept into her blood this last month...
W. E. B. Du Bois 「The Quest of the Silver Fleece」
...He put temptation aside,and applied the whip to the back of his mule with a vigor thatastonished the animal and moved him to unwonted activity...
Charles W. Chesnutt 「The House Behind the Cedars」
...This hour he glows in the blush of health and vigor, but the next, he may be counted with the number no more known on earth...
William Wells Brown 「Clotelle」
...It has beenacclimatized in many parts of the world, and shows the same vigor andhardiness wherever it has been transplanted...
A. R. Harding 「Fur Farming」
...The joyof deliverance sent a glow of Berserk vigor sweepingthrough him...
Albert Payson Terhune 「Lad: A Dog」
...At this point, a little vigor in thetreatment will rapidly extinguish the disease...
Robert Jennings 「Sheep, Swine, and Poultry」
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