This was one of the cases apparently saved by such timely attention, and which I intend hereafter to describe more particularly, for the purpose of illustrating both the medical and moral treatment of many similar cases of insanity. I shall, however, state so much of the case now, as will be sufficient to show, that there is not only a critical period of the disease, when judicious medical and intellectual attention arrests and prevents its transition into another and equally dangerous form of over-excitation, so dangerous, that if allowed to take its course, it not unfrequently ends in dementia, but also, and more especially to show, that in all cases our moral treatment must have in view the nature of the existing causes, in order that we may be able to adopt the most suitable methods of counteracting their effects,—a part of treatment which has hitherto been either wholly overlooked, or else exercised without much knowledge and discretion; although I am certain it is of great importance in the treatment of all curable cases of insanity, and in many cases so important, that by such methods we may ultimately succeed in removing these causes altogether; and removing them, remove also the fear of their again (at any future time) being allowed to have any baneful operation. This person, who was a dissenting minister, had always been reckoned by all parties, one who entertained gloomy views in religion, and pushed these into extremes; his zeal was equally violent and vindictive, and he besides possessed a mind with every opposite quality in excess, and which had always, as far as I could ascertain, been in a state of irregular and discordant excitation; it is quite certain that during many years past, it had been habitually kept in a very painful and irritable state, by several causes, and one more especially deserving notice. He lived unhappily with his wife and her friends,—instead of union and harmony, all was dislike and contradiction, perpetual storms and altercations, which had just before terminated in a separation between himself and them. Thus, from the condition of his own unsettled and ill-constituted mind, his gloomy and vindictive views in religion, his variable and irritable temper, and from the nature of the domestic excitement under which he had suffered most severely, it was easy to trace the distressing and awful form of his derangement to the causes which had produced it.