This man, eminent in the highest degree, believed that another learned man, his friend and greatest admirer, was his bitter enemy. All efforts to convince him to the contrary were fruitless, for although remarkably clear-sighted on most other subjects, he obstinately refused on this to listen to the truth. Indeed, the remonstrances of his friends had the effect of strengthening his conviction that the reptile, as he called the supposed enemy, assumed the appearance of friendship, the better to mask his infamous designs. This delusion went on for some time, but did not show itself beyond words, and even those were never addressed to the supposed enemy, whose designs he said "he would meet with simulation and the reptile's own insidious weapons." Greatly as all this was to be regretted, the man was so venerated, and was usually so calm, that none suspected any tendency to a deranged intellect. His strong feelings were ascribed to mistaken impressions, until a very disagreeable occurrence opened our eyes to his real state. Both he and his supposed "enemy" were present at a dinner, given by a high official, the chief Knowledge-tester or Examiner. Our dining-tables are semicircular, and the guests are seated on the convex side only. The Monomaniac, being a particular friend, honoured by the host, sat next to him in the centre. The supposed "enemy" happened to be seated at the extreme end of the semicircle, and consequently in a position to be seen from the centre of the table. All went on well till about the middle of the repast, when suddenly the Monomaniac rose, pointed to his supposed enemy, and addressing himself to the guests, said, "Look there! Do you not see the grimaces he is making at me?" Every one marvelled! The host addressed the Monomaniac in a gentle tone, entreating him to have more control over his temper, Those seated close to the supposed "enemy" declared loudly that he had made no grimaces; but their denial only increased the fury of the accuser. A bird-- considered a great delicacy--had just been placed before the host. It was arranged, as were our dishes generally, to please the eye as well as the palate, being ornamented with olives, sweetmeats, and other ingredients of varied colours. Birds, I may incidentally remark, are cooked without the bones; these are skilfully taken out and serve to enrich the gravy. The Monomaniac again rose suddenly and, before his arm could be arrested, seized the fowl, larded as it was with accessories and dripping with gravy, and with all his force hurled it whole, with unerring aim, at the face of the supposed enemy. So great was his excitement, and so rapid his movements, that he had seized one of the "knife-spoons," and had he not been arrested, would probably have hurled that, and, indeed, everything within reach against the object of his fury.