Joseph Cook comes down like a wolf on the fold and it is hard to tell where he next will light. There is scarcely any institution of note in this country which has not suffered from the stings and arrows of the outrageous Monday Lectureship, and Harvard least of all has been exempt from its attacks. The latest sufferer, however, is the University of Leyden, the students of which have been accused of the grossest immorality by Mr. Cook. Strange to say this accusation is indignantly denied by the rector of the university. But little weight, however, can be attached to such a denial in the face of the contrary assertion by the Lectureship. Besides, it is a notorious fact that college students everywhere are hopelessly immoral, and it is absurd to think that students at the University of Leyden form an exception to this rule.