ON Tuesday evening some person or persons unknown placed a bomb in one of the windows of University Hall, and exploded it. The window frame was literally blown to pieces, the woodwork of the room was greatly injured, and dozens of panes of glass were broken. That the perpetrators of this act were not students is possible; but it is hard to believe that any one who could not claim the popular indemnity that connection with a college gives to petty malefactors would have ventured to expose himself to the risk of detection. In all probability this explosion was contrived by undergraduates.

For several years there has been a decided decrease at Harvard of this kind of practical joking. Since the present Board of Editors has been connected with the paper, there has been no other wanton and perfectly objectless destruction of College property. The unusual character of the occurrence makes it doubly worth while to give public expression to what may safely be termed public opinion, and to inform the humorous gentlemen who are presumed to have managed this affair, that, in case of detection, they cannot expect the sympathy of the majority of their fellow-students.