The consequences of these two observations are easily deduced. It seems clear that in each case, the blow which deranged the brain, had spared for a long time, that portion of the organ employed in commerce and in gaming. It had resisted it beyond doubt, because exercise had given it great power, and because deeply worked impressions hatf exerted great influence on it. AGE. Age has great influence on the nature of dreams. In infancy we dream of games, gardens, flowers, and other smiling objects; at a later date, we dream of pleasure, love, battles, and marriages; later still we dream of princely favors, of business, trouble and long departed pleasures. PHENOMENA OF DREAMS. Certain strange phenomena accompany sleep and dreams. Their study may perhaps account for anthropomania, and for this reason I record here, three observations, selected from a great many made by myself during the silence of night. FIRST OBSERVATION. I dreamed one night, that I had discovered a means to get rid of the laws of gravitation, so that it became as easy to ascend as descend, and that I could do either as I pleased. This estate seemed delicious to me; perhaps many persons may have had similar dreams. One curious thing however, occurs to me, which I remember, I explained very distinctly to myself the means which led me to such a result, and they seemed so simple, that I was surprised I had not discovered it sooner. As I awoke, the whole explanation escaped my mind, but the conclusion remained; since then, I will ever be persuaded of the truth of this observation. SECOND OBSERVATION. A few months ago while asleep I experienced a sensation of great gratification. It consisted in a kind of delicious tremor of all the organs of which my body was composed, a violet flame played over my brow. Lambere flamma comas, et circum temporo pasci. I think this physical state did not last more than twenty seconds, and I awoke with a sensation of something of terror mingled with surprise. This sensation I can yet remember very distinctly, and from various observations have deduced the conclusion that the limits of pleasure are not, as yet, either known or defined, and that we do not know how far the body may be beatified. I trust that in the course of a few centuries, physiology will explain these sensations and recall them at will, as sleep is produced by opium, and that posterity will be rewarded by them for the atrocious agony they often suffer from when sleeping. The proposition I have announced, to a degree is sustained by analogy, for I have already remarked that the power of harmony which procures us such acute enjoyments, was totally unknown to the Romans. This discovery is only about five hundred years old. THIRD OBSERVATION.