But as if all these were not enough to enable the merest novice to distinguish the one from the other, even if he were near-sighted, he offers these reinforcements: "It is quite certain, as the observations of the writer show, that the specific gravity of both the white and gray matter of the brain is greater in man than in woman." This would seem to leave woman without a reef to hang to; for if by any chance her brain did not fall short in gray matter, the specific gravity of the rest of it would enable the doctor to ticket her as accurately as though she were to appear with ear-rings and train in a ballroom. Of this point this is what the leading brain anatomist in America wrote me: "The only article recognized by the profession as important and of recent date which takes this theory as a working basis is by Morselli, and he is compelled to make the sinister admission, while asserting that the specific gravity is less in the female, that with old age and with insanity the specific gravity increases." If this is the case, I don't know that women need sigh over their short-coming in the item of specific gravity. There appear to be two very simple methods open to them by which they may emulate their brothers in the matter of specific gravity if they so desire. One of these is certain, if they live long enough, and the other—well, there is no protective tariff on insanity. But to finally clinch his argument, Dr. Hammond continues: "The question is, therefore, not so much that of quantity" (which appears to collide with his statement that it was the "absolute brain weight" which was the sublime test, and drops my whale into the water again), "as it is of quality. The brain of woman is different from that of man in structure."
Again I applied my test. Does all this difference of structure and quality appear in the infant or only in the adult brains? Since it is held that these very differences are the ones produced by education and properly diversified mental stimulus—as between man and man—is it not fair to assume that like causes produce like results as between man and woman? Since woman has never had the advantages of these brain-developing processes, is it not fair to assume, if all these differences do exist, that it is less a matter of natural and characteristic inferiority than of environment and opportunity, unless it exists in the same ratio in infants? That would be the test as to whether these are natural, necessary, pre-natal sex characteristics, or whether they are developed by external circumstances and environment. The physical sex characteristics, which are natural, are as readily distinguished at birth as at maturity.
But after a woman's waist and brain are put into tight laces and shaped to fit the fashion, it is rather a poor time to judge of her natural figure, either physical or mental. There was but one reply to my questions. It was this:
"No such test has ever been made with the brains of infants, and the wildest imagination could only stand appalled at the effort. It would be impossible to distinguish the male from the female child by these 'radical, natural, easily-discovered sex differences' in brain." I held, then, that the inference was perfectly legitimate that the great and numerous differences in the brains of adults, in so far as that was not, also, a mere flight of fancy, was not natural, pre-natal, and necessary, but that it was certainly fair to assume it to be produceable, by outside measures or environment, and that it could be no more natural nor desirable, for the digestive organs and the brain of one sex to be decreased and deformed by pressure, than it is for those of the other.
But I confess I was wholly unprepared for the final result of my last question and argument. I discovered that these differences are not only not known to exist in infants, but that in spite of all the talk, the pathetic warnings, and the absolute statements to the contrary, that in a like number of adult brains such differences are not only not to be "perceived at once," but that if Dr. Hammond or anybody else will agree to allow me to furnish him with twenty well-preserved adult brains to be marked in cipher, so that he will not have his information before he makes his test, he will find that his "numerous, striking, and easily perceived" differences will not appear with any relation to sex, so far as is known at the present time. I made this offer to him through the Popular Science Monthly some six months ago. Up to date the twenty brains I offered him to try on have not been called for.
Upon the contrary there will be found greater difference between individuals of the same sex than any known to exist between the sexes in any and all of these test characteristics; that, in the main, since women weigh less than men, it would be pretty safe to guess that most of the lighter brains belonged to the women, but that this test would prove wrong in many cases, and that the others would fail utterly.
I asked them why they did not correct the general impression which men of their profession had given out in this matter. They said they did not see the use of it; what difference did it make, anyhow? And then it was a good enough working theory. I said, "But suppose it worked the other way, do you think that you would say that it made no difference, and that a working theory that worked all one way was a safe or an honest one to put forth as an established fact?"
"Well, we are willing to tell you the truth about it," they said; "the fact is, it is all theory as yet; there has not been a sufficient number of tests made to warrant the least dogmatism in the matter; what more can you ask of us than that?"
What indeed?
I made another discovery; it was this: The brain of no remarkable woman has ever been examined! Woman is ticketed to fit the hospital subjects and tramps, the unfortunates whose brains fall into the hands of the profession, as it were, by mere accident; while man is represented by the brains of the Cromwells, Cuviers, Byrons and Spurzheims. By this method the average of men's brains is carried to its highest level in the matter of weight and texture; while that of women is kept at its lowest, and even then there is only claimed 100 grammes difference! It is with such statistics as these, it is with such dissimilar material, that they and we are judged.