In American colleges, the monitors are usually appointed by the President, their duty being to keep bills of absence from, and tardiness at, devotional and other exercises. See _Laws of Harv. and Yale Colls._, &c. Let _monitors_ scratch as they please, We'll lie in bed and take our ease. _Harvardiana_, Vol. III. p. 123. MOONLIGHT. At Williams College, the prize rhetorical exercise is called by this name; the reason is not given. The students speak of "making a rush for _moonlight_," i.e. of attempting to gain the prize for elocution. In the evening comes _Moonlight_ Exhibition, when three men from each of the three lower classes exhibit their oratorical powers, and are followed by an oration before the Adelphic Union, by Ralph Waldo Emerson.--_Boston Daily Evening Traveller_, July 12, 1854. MOONLIGHT RANGERS. At Jefferson College, in Pennsylvania, a title applied to a band composed of the most noisy and turbulent students, commanded by a captain and sub-officer, who, in the most fantastic disguises, or in any dress to which the moonlight will give most effect, appear on certain nights designated, prepared to obey any command in the way of engaging in any sport of a pleasant nature. They are all required to have instruments which will make the loudest noise and create the greatest excitement. MOSS-COVERED HEAD. In the German universities, students during the sixth and last term, or _semester_, are called _Moss-covered Heads_, or, in an abbreviated form, _Mossy Heads_. MOUNTAIN DAY. The manner in which this day is observed at Williams College is described in the accompanying extracts. "Greylock is to the student in his rambles, what Mecca is to the Mahometan; and a pilgrimage to the summit is considered necessary, at least once during the collegiate course. There is an ancient and time-honored custom, which has existed from the establishment of the College, of granting to the students, once a year, a certain day of relaxation and amusement, known by the name of '_Mountain Day_.' It usually occurs about the middle of June, when the weather is most favorable for excursions to the mountains and other places of interest in the vicinity. It is customary, on this and other occasions during the summer, for parties to pass the night upon the summit, both for the novelty of the thing, and also to enjoy the unrivalled prospect at sunrise next morning."--_Sketches of Will. Coll._, 1847, pp. 85-89.