Lewis Reeve Gibbes dating history

Details

"Guided by the order of succession which he had observed, Gibbes made several changes in the arrangement which would have been the consequence of following [ed: George Frederick] Barker's tables slavishly. With considerable chemical insight, Gibbes utilized his knowledge of isomorphism and other properties in placing vanadium, columbium, tantalum, chromium, and boron in the pigeon-holes now so familiar to chemists. In this way he placed in the main body of the chart, which corresponds closely with the skeleton of our present short form of the Periodic Table, forty one of the sixty-three elements known in 1874. Of these, all but five—his Series K—were correctly located, and even where his fragmentary knowledge of some of the heavy elements misled him, Gibbes grasped the correct general outline."