MORMON PREPARATIONS FOR MOVING—James Arling-ton Bennett writes thus to the New York Sun:—'There are already organized twenty-five companies of one hundred families each, to be filled up during the winter, for the march to California. Each family of ten persons will have a strong wagon drawn by four oxen and supplied with everything necessary tor the journey. A troop of horse will be organized as an ad-vance guard. The whole Mormon people are called in from Europe and America, so that they expect about two hundred thousand persons to congregate within one year at the Bay of Francisco!—Several ships will be fitted out in England to take their people round Cape Horn, and others will sail from New York in the spring."