BRIGHAM YOUNG has driven the last spike in the last tie that binds the Mormons to Utah. It was a railroad spike in a railroad tie. But while this spike may hold very fast, there are other spikes in other ties there and thereabouts which will be quite apt to come loose in consequence. The road has been dedicated to the Lord. If the Gentiles use it freely to get in, and the Mormons use it free-ly to get out, the dedication will prove some-thing more than a sham ceremony. At forty miles an hour, a few express trains daily, with no sleeping coaches attached, will soon make Salt Lake City a civilized community. It will be a blessing to the whole country if the the sleepers in that road are well laid, the ties sound, the rails continuous, and the spikes never draw.