His notes were subjected to perpetual revisions and additions.
Those who work with living forms of which it is possible to obtain a large number of specimens, and those who make revisions of the provisional species of palaeontologists, are slowly coming to some such conception as that a species is the abstract central point around which a group of variations oscillate, and that the peripheral oscillations of one species may even overlap those of an allied species.
Trans., 3rd ed., Edinburgh, 1854), and the Philosophic de Locke (4th ed., 1861) were simply matured revisions of his lectures during the period from 1815 to 1820.
He fought with unremitting energy for his client during both the first and second revisions of the trial, in 1898 and 1899, a task attended with considerable danger, as political passions were so strongly excited at the time that Labori was shot at and wounded at Rennes on the eve of his cross-examination of the witnesses for the prosecution.
But these were not successful, and in the 13th century, instead of revisions, attempts were made to fix the text by providing correctoria, or lists of correct readings, which were the equivalent of critical editions; of these the chief are the Parisian, the Dominican (prepared under Hugo de S.