In view of these and many similar facts, we are not surprised that the eminent German anatomist and anthropologist, Rudolph Wagner, should declare that "very intelligent men do not differ strikingly in brain weight from less gifted men," and that the noted French physician, Esquirol, should assert that "no size or form of head or brain is incident to idiocy or superior talent." So far as civilized races are concerned, there can be no doubt that the absolute weight of the male is greater than that of the female brain. According to the investigations of seven of the most notable anthropologists, who have given special attention to the subject under consideration, and who, collectively, have carefully weighed many thousands of brains, the average brain weight of men in Europe is 1381 grams, while that of women is 1237 grams. This shows a difference between the average weight of the brain in man and woman of 144 grams. But, if it must be conceded that the absolute weight of man's brain is greater than woman's, is it likewise true that the relative weight is greater? This is a question which demands an answer, as it is impossible to come to any just conclusion respecting the intellectual capacity of woman expressed in terms of brain weight, unless we can affirm with certainty that men's brains are relatively, as well as absolutely, larger than those of women. Speaking of the relative weight of brain in man implies a term of comparison. Several methods of estimating the sexual proportions of brain mass have been suggested, but only two of them have met with any favor. These are determining the ratio of brain weight to body weight or body height. According to the investigations of anthropologists of acknowledged authority, the average brain weight of woman is to that of man in England and France as 90 is to 100. The average stature of men and women in the same countries is as 93 to 100. This gives man an excess of brain weight over that of woman of something more than an ounce. But this slight difference in weight has been considered sufficient to constitute it "a fundamental sexual distinction." When, however, it is considered that men are not only taller but also larger than women, this apparent advantage of an ounce in favor of the male entirely disappears, and the result is that the relative amount of brain mass in the two sexes is practically equal.