If in any case we are in a position to intervene and definitely forbid increase, it is in the case of certain specific diseases, which I am told are painful and disastrous and inevitably transmitted to the offspring of the person suffering from these diseases. If there are such diseases--and that is a question the medical profession should be able to decide--it is evident that to incur parentage while one suffers from one of them or to transmit them in any avoidable way, is a cruel, disastrous and abominable act. If such a thing is possible it seems to me that in view of the guiding principle laid down in these papers it might well be put at the nadir of crime, and I doubt if any step the State might take to deter and punish the offender, short of torture, would meet with opposition from sane and reasonable men. For my own part I am inclined at times almost to doubt if there are such diseases. If there are, the remedy is so simple and obvious, that I cannot but blame the medical profession for very discreditable silences. I am no believer in the final wisdom of the mass of mankind, but I do believe enough in the sanity of the English-speaking peoples to be certain that any clear statement and instruction they received from the medical profession, as a whole, in these matters, would be faithfully observed. In the face of the collective silence of this great body of specialists, there is nothing for it but to doubt such diseases exist. Such a systematic suppression of a specific disease or so is really the utmost that could be done with any confidence at present, so far as the State and collective action go. [Footnote: Since the above was written, a correspondent in Honolulu has called my attention to a short but most suggestive essay by Doctor Harry Campbell in the _Lancet_, 1898, ii., p. 678. He uses, of course, the common medical euphemism of “should not marry” for “should not procreate,” and he gives the following as a list of “bars to marriage”: pulmonary consumption, organic heart disease, epilepsy, insanity, diabetes, chronic Bright’s disease, and rheumatic fever. I wish I had sufficient medical knowledge to analyze that proposal. He mentions inherited defective eyesight and hearing also, and the “neurotic” quality, with which I have dealt in my text. He adds two other suggestions that appeal to me very strongly. He proposes to bar all “cases of non-accidental disease in which life is saved by the surgeon’s knife,” and he instances particularly, strangulated hernia and ovarian cyst. And he also calls attention to apoplectic breakdown and premature senility. All these are suggestions of great value for individual conduct, but none of them have that quality of certainty that justifies collective action.] Until great advances are made in anthropology--and at present there are neither men nor endowments to justify the hope that any such advances will soon be made--that is as