We are told in the "Psychological Magazine," that many cases have occurred in which persons have forgotten their own names. On one occasion, a gentleman had to turn to his companion, when about to leave his name at a door where they called to visit, to ask him what it was, so completely and suddenly had he forgotten it. After severe attacks of illness and great hardship, loss of memory is not infrequent. Some who recovered from the plague at Athens, as Thucydides relates, had lost their memories so entirely that no friend, no relation, nothing connected with their personal identity, was remembered. It is said, that, among those who had escaped with life the disasters of the memorable campaign in Russia, and the disease which was so fatal to the troops at Wilna, there were some who had utterly lost their memory--who preserved not the faintest recollection of country, home, or friends. The fond associations of other days had left nothing but a dreary blank. As the body has been made the vehicle for the exercise of the faculties of the mind, and as they are united in some mysterious manner, we find injuries to the one often hurtful, and sometimes fatal to the other. Mental shocks frequently impede, or in some cases utterly put an end to that exercise which the union of body and mind produces. The memory is often disturbed or upset by some injury to the brain. A fall, a sudden blow, or disease, may obliterate _all recollection_. We have heard of those who have suffered from such who have forgotten every friend and relation, and never knew the face of one belonging to them again. But the effects are sometimes very strange and partial, and totally beyond our comprehension. The functions of the memory, in some cases, are suspended for a time, but, on recovery, take up at the very point where they were deprived of their power. Dr. Abercrombie was acquainted with a lady who had an apoplectic seizure while at cards. From Thursday evening till Sunday morning she was quite unconscious. At length she spoke, and the first words she uttered were, "What is trump?" Beattie mentions a gentleman who had a similar attack, in the year 1761, from which he recovered, but all recollection of the four years previous to the attack was gone, while all that had happened in the preceding years was accurately recollected. He had to refer to the public journals of the forgotten years, in which he had taken great interest at the time, for information about the passing events of those years, and read the details with great satisfaction and surprise. By a fall from his horse, a gentleman, who was an admirable scholar, received a severe hurt on the head. He recovered, but his learning was gone, and he had actually to commence his education again by the very first step, the learning of the alphabet. A less unfortunate scholar, meeting with a similar accident, lost none of his acquirements but his Greek; but it was irrevocably lost. A strange caprice of memory is recorded in the