Iowa's comprehensive statute applies to inmates of public institutions for criminals, rapists, idiots, feeble-minded, imbeciles, lunatics, drug fiends, epileptics, syphilitics, moral and sexual perverts and diseased and degenerate persons. It is compulsory in case of persons twice convicted of felony or of a sexual offense other than "white slavery," in which offense one conviction makes sterilization mandatory. The state parole board, with the managing officer and physician of each institution, constitute the executive authorities. The act has many objectionable features, one of the most striking of which is the inclusion of syphilitics under the head of persons whom it is proposed to sterilize. As syphilis is a curable disease, there is scarcely more reason for sterilizing those afflicted with it than there is for sterilizing persons with measles. It is true that the sterilization of a large number of syphilitics might have a eugenic effect, if the cured syphilitics had a permanently impaired germ-plasm--a proposition which is very doubtful. But the framers of the law apparently were not influenced by that aspect of the case, and in any event such a method of procedure is too round-about to be commendable. Criminals as such, and syphilitics, should certainly be removed from the workings of this law, and dealt with in some other way. However, no operations are reported as having been performed under the act. New Jersey's law, which has never been operative, represents a much more advanced statute; it applies to inmates of state reformatories, charitable and penal institutions (rapists and confirmed criminals) and provides for a board of expert examiners, as well as for legal procedure. New York's law, applying to inmates of state hospitals for the insane, state prisons, reformatories and charitable institutions, is also fairly well drawn, providing for a board of examiners, and surrounding the operation with legal safeguards. No operations have been performed under it. North Dakota includes inmates of state prisons, reform school, school for feeble-minded and asylum for the insane in its law, which is administered by a special board. Although an emergency clause was tacked on, when it was passed in 1913, putting it into effect at once, no operations have been performed under it. Michigan's law applies to all inmates of state institutions maintained wholly or in part at public expense. It lacks many of the provisions of an ideal law, but is being applied to some of the feeble-minded. The Kansas law, which provides suitable court procedure, embraces inmates of all state institutions intrusted with the care or custody of habitual criminals, idiots, epileptics, imbeciles or insane, an "habitual criminal" being defined as "a person who has been convicted of some felony involving moral turpitude." It has been a dead letter ever since it was placed on the statute books.