There is another form of this disorder under the influence of which some insane persons become highly dangerous; but which has not been hitherto sufficiently noticed, although it deserves the fullest consideration. As several instances of this state have fallen under my own observation I shall beg to relate two or three cases with as much brevity as may adequately suffice to convey the facts. It has been already remarked that some insane persons who have recovered the proper direction of their intellects have thoroughly remembered the particulars of their diseased state:—in the instances to be related they have retained no trace of their disorder, nor any of the circumstances which occurred during its continuance. A very powerful man, above the ordinary stature, who in his youth had been subject to epileptic attacks, and frequently to intervals of sullen abstraction, which increased after the epileptic fits had subsided, became suddenly furious, and during the transports of his disorder destroyed two children and a woman. For this act there appeared to be no motive. He was ordered to be confined, where he continued until his death. For many years during his seclusion I had constant opportunities of seeing and conversing with him. He was ordinarily in a very tranquil state, and did not discourse irrationally;—indeed there was no particular subject on which his mind appeared to be disarranged, nor were there any persons against whom he entertained an aversion. Much of his time was passed in reading, which he said afforded him great consolation. On many occasions I endeavoured to draw from him some account of the motives which induced him to destroy the persons above-mentioned; but he uniformly and steadily persisted that he had no recollection whatever of such occurrence. He said, he understood he had done something which was very wicked, and for which he was confined; and which he had no doubt was true, from the respectability of the persons who informed him of his crime; but he thanked God he had no more memory of what had passed than if it had been committed in his sleep.—During the years of his confinement he had many furious paroxysms, and in order to be fully satisfied of the truth of his asseverations as to his want of recollection during these attacks, he was once blooded at the commencement of the paroxysm, although with considerable difficulty, and on another occasion cupped when its violence was subsiding,—yet when he was restored to his ordinary state of tranquility he neither recollected the persons who were present nor the operations which had been performed.—Of the same class of mental affection was the case of a young lady, who became insane in consequence of having experienced some severe disappointments. She attempted to destroy herself in various ways, and was therefore obliged to be strictly restrained; but to others she manifested no evil intentions. When spoken to, she returned correct