Some of the greatest changes in the world's history have been effected by dwellers in the borderlands. Mahomet was an epileptic, and his first vision was the result on an epileptic convulsion or seizure. The character of his visions was exactly like that of those visions which an epileptic sees and describes at the present time. Mahomet believed in his visions, and, what is more, got more than half the world to believe in them also. Gautama was a dweller in the borderlands, yet his followers now number five hundred millions. The novel mode in which an insane man regards things may be an inspiration which reflection could never attain, and it sometimes happens that opinions which seem to the world to be the ravings of a madman, have turned out to be true. The insane man has the world against him, and though he may pose for a short time as a reformer, sooner or later lands in the asylum. It sometimes happens that the crank will succeed in getting converts. A notable instance is Schweinfurth, or "the Christ," as he calls himself. I am firmly convinced that this man believes in his delusions. One thing is certain, and that is, his disciples believe in him implicitly. This man is dangerous to society, inasmuch as he has caused the separation of several wives from their husbands; the wives abandoning their husbands to follow him to "Heaven," as he calls his farm house. The crank is, generally, a harmless individual, and is not anti-social unless his delusions take the form of homicidal impulse, pyromania, kleptomania, etc. Homicidal impulse is the most dangerous to society of the many mental vagaries and derangements which afflict the dwellers in the borderlands. Its invasion is sudden and its impulse is, generally, overpowering. A man may be walking the streets presumably in perfect health, and yet have, all the while, a voice whispering in his ear "kill, kill." His insane desire at length reaches its acme, and he throws aside every mental restraint and kills the first individual he may chance to meet. Again, he may desire to kill some particular individual, and will carefully and systematically arrange his plans for the successful enactment of the homicide. The murderers of Garfield and Harrison probably belong to this latter class, though in the case of Prendergast, the slayer of Mayor Harrison, this opinion may be erroneous. There is something about his photograph that leads me to believe that he is a moral imbecile, rather than an intellectual dyscrasiac.