These lectures, which are dedicated to Mr. Horatio Hale, the veteran philologist and ethnographer to the United States exploring expedition in 1832-42, go over a very wide ground. The ground traversed is, indeed, so extensive that Dr. Brinton feels bound to apologise for being often superficial, as otherwise he could not have compressed into so small a space the subjects of which he treats. This apology must necessarily to some extent disarm the critic, although it should do so only where a conclusion is not supported by sufficient evidence. Where a statement made is not merely unsupported by, but is contrary to, the best evidence available, the author must expect to be called to account. We were prepared to act on this principle, thinking that possibly confession like charity would be found to cover a multitude of sins, but we must admit that with certain exceptions, the chief of which are to be found in the lecture on "the psychical elements of Ethnography," we were mistaken. We do not propose to follow the author in his classification of the varieties of mankind, or in his views of the origin of the various races into which they are divided, both of which will meet with keen opposition from most of the anthropologists of Western Europe, although those of Germany may receive them with more favor. We are concerned chiefly with the opening and the closing chapters of the work before us, from which we may draw some conclusions bearing on the race question, that disturbs the minds of so many people in this country. Dr. Brinton remarks that the physical traits of man are correlated to the physiological functions in such a manner as profoundly to influence the destiny of nations. He adds that from the physical point of view, the pure white is weaker than the dark races, worse prepared for the combat of life, with inferior viability; but in the white this is more than compensated by the development of the nervous system and intellectual power. The white "can bear greater mental strain than any other race, and the activity of his mind supplies him with means to overcome the inferiority of his body, and thus places him at the head of the whole species." It might be supposed that a mixture of races having these different qualities, would result in the formation of a hybrid race, superior to either of the parent stocks.