The CRIMSON some weeks ago had occasion to refer to the annoying manner in which men, especially freshmen, begin to shuffle their feet and slam their note-book covers five minutes before the close of recitations in some of the larger courses. As Ninety-three has grown older an improvement has been observable in this respect. But one practice remains, which, if possible, is still more annoying than the one just mentioned. We mean the practice, unfortunately not confined to Ninetythree, of leaving the lecture room during the hour. The disturbance occasioned by only one man's leaving the room while the lecturer is speaking often breaks the thread of the lecturer's thought, and so wastes time for him and the whole class. When several men leave one after the other the loss of time is very appreciable. But the loss of time is not so great an evil as the ungentlemanly character of the proceeding. To a man who does not recognize this it would be useless to say more. The strongest reason of all for the discontinuance of this custom remains to be mentioned. A student often comes with the intention of leaving in the middle of a lecture and still hopes to be credited with being present when he was not present. This is certainly essentially dishonest.