Phrenologists affirm that the female head does not measure so much round as the male; neither is it so wide, so high, nor so long. On the other hand, many authorities, English and foreign, say that the brains of women are larger than those of men _in proportion_ to the size of their bodies, while their temperaments are more nervous and sensitive; hence female mental inferiority would be a hasty generalization; for although the brain is the intellectual organ, size is not the only measure of power. Woman, like man, was created perfect; but the powers of her mind are essentially different from those of man. The male intellect is logical and judicious, while that of the female is instructive and emotional. “They are one in the warp and woof of their mental nature; but the interwoven threads are in bulk so differently proportioned in the two, that they differ very considerably in superficial colour and finish.” The theory that the strong, or male mind, prefers the weak, or female mind, in its hours of leisure, is contradicted by experience. Poets, philosophers, and orators, prefer the fellowship of kindred souls. On the same principle, clever men naturally court the society of clever women. A creature of inferior mental powers would not be a help meet for man. Who have a better right to speak to this theme than teachers of youth? Their vocation leads them to see boys and girls studying the same subjects, and they are pretty unanimous in their opinion that the memories, perceptions, and understandings of girls are quite equal to those of boys. Plato was of opinion that males had no superiority over females, except in physical strength. Dugald Stewart was of the same opinion, and ascribed the difference in the sexes to education. Several of the school inspectors in England and Scotland report that they found the capabilities of the girls as good in general as those of boys; that although part of the school-day was devoted rightfully to needlework, they made as much progress as lads of the same amount of training when taught by the same masters. Of the six ladies who attended the separate classes for women authorized by the university of Edinburgh, five were found in the prize list—one, Miss Pechey, received a bronze medal, and ought to have been a Hope scholar; Miss Blake, got a first-class certificate of merit; while Mrs. Masson, Mrs. Thorn, and Miss Chaplin, have certificates of merits of second-class. The Aberdeen lady students’ classes were organized late last year. The lecturers were Mr. M’Bain, formerly Assistant-Professor of Greek in the university, and Dr. Beveridge—both eminently qualified; and the subjects undertaken, were English Literature and Chemistry, and Experimental Physics. From an address delivered by M. Krueger, we notice that eight ladies attended the first of these classes, and eleven the second, and that the students are highly spoken of alike for attention and ability. The