The case No. 335, was, as I have already mentioned, always soonest roused out of her melancholy condition, by being placed for a short time in the midst of such association. It would be contrary to the economy of providence, as exemplified by the constitution of society, to place all the melancholy in one class, and all the lively in another. The truth of this argument receives additional confirmation, when we consider, which I am prepared to prove, that insanity in many cases, is produced by, and consists of, an aggravation of the original peculiarity of character, and therefore it is evident, that such collision, like collision in the world, is making one extreme tend to correct another, though of course, the worst and most dangerous cases of every description, are not in their treatment included in this principle. Many instances are recorded, of two opposite cases, by being thrown together, neutralizing, like an acid and alkali, each other; that is, the melancholy have been roused by the lively, and the lively depressed by the melancholy, and thus both have been brought into a better state. Sometimes the insane have been cured by witnessing their own case caricatured in that of another. For instance, two proud men, the victims of their gradual and progressive false estimate of themselves, assume in their insane state, the same crown and kingdom, and by witnessing each other’s delusion, have been forced to feel that one must be in the wrong; and thus, one or both were brought to reflection, and ultimately to a more sound and sober state of mind. Even the imbecile and idiot, are roused and improved by such associations, more than they had been, even with every endeavour to improve them, while they were in a state of seclusion. I have lately had two very remarkable instances of this kind. _No._ 425 _and_ 429.