The Ladies' Fair, now being held at Mechanics' Institute Hall, is one of the neatest entertainments of the kind of the season, and particularly deserving a liberal support. Some few months since the Methodist Sunday School Union of Richmond established a school in Monroe Ward, and from that time to the present the school has been compelled to meet in the office of a coal company, because no more suitable place could be obtained. To get a larger and more comfortable building, the ladies have combined their skill and energies in getting up the present Fair; and, as a lot has been purchased on Marshall street, on which to erect a chapel, they call upon the public to aid them in their enterprise. Who can resist their appeal in such a cause?