“ He followed up this line of argument in 1888 with Mental Evolution in Man, in which he maintained the essential similarity of the reasoning processes in the higher animals and in man, the highest of all. In 1892 he brought out an Examination of Weismannian, in which he upheld the theory of the heritability of acquired characters. In 1890 he left London and settled at Oxford, where he founded a lecture similar to the "Rede" of Cambridge, to be delivered annually on a scientific or literary topic. ”

“ Meantime he had also been devoting his attention to broader problems of biology. In 1881 he published Animal Intelligence, and in 1883 Mental Evolution in Animals, in which he traced the parallel development of intelligence in the animal world and in man. ”