For you will find in the progress of our dispute, that I had some reason to question the very way of probation imployed both by peripatetics and chymists, to evince the being and number of the elements.
1813, w:John Gabriel Stedman|John Gabriel Stedman, Narrative of a Five Years Expedition'', Vol. 1, London: J.Johnson, Chapter III, p. 66, https://archive.org/details/narrativeoffivey01sted
To evince the absurdity of that prejudice which considers human creatures as brutes merely because they differ from ourselves in colour, I must beg leave to mention a few of the principal ceremonies that attended the ratification of this peace.
1815, w:Mungo Park (explorer)|Mungo Park, Travels in the Interior of Africa, Cassell: 1893, Chapter VI, http://www.gutenberg.org/files/5266/5266-h/5266-h.htm
‘That unless all the people of Kasson would embrace the Mohammedan religion, and evince their conversion by saying eleven public prayers, he, the king of Foota-Torra, could not possibly stand neuter in the present contest, but would certainly join his arms to those of Kajaaga.’
Quite an excellent repast consisting of rashers and eggs, fried steak and onions, done to a nicety, delicious hot breakfast rolls and invigorating tea had been considerately provided by the authorities for the consumption of the central figure of the tragedy who was in capital spirits when prepared for death and evinced the keenest interest in the proceedings from beginning to end (..)
As the game proceeded it became evident that Porgy's luck was with him; he was the most consistent winner, and Sportin' Life was bearing most of the burden. But the mulatto was too good a gambler to evince any discomfiture.