...letter giving a general description of the bars on the coast. For the rest of the winter and far into the spring he was hard at work. Here is a taste of his experiences, taken from a letter dated Corpus Christi , March 9, 1853:--I left here on the 22d of February, one of the most beautiful mornings I ever saw, bright, clear, and mild, with a nice breeze just in the right direction. I congratulated myself o...