ยง 265. Detention. Whoever wilfully detains any book, newspaper, magazine, pamphlet, manuscript or other property belonging to any public or incorporated library, reading-room, museum or other educational institution, for thirty days after notice in writing to return the same, given after the expiration of the time which by the rules of such institution, such article or other property may be kept, shall be punished by a fine of not less than one nor more than twenty-five dollars, or by imprisonment in jail not exceeding six months, and the said notice shall bear on its face a copy of this section.