In November Audubon is again at the house of his friend Dr. Bachman, in Charleston, South Carolina. Here he passed the winter of 1836-7, making excursions to various points farther south, going as far as Florida. It was at this time that he seems to have begun, in connection with Dr. Bachman, his studies in Natural History which resulted in the publication, a few years later, of the "Quadrupeds of North America."
In the spring he left Charleston and set out to explore the Gulf of Mexico, going to Galveston and thence well into Texas, where he met General Sam Houston. Here is one of his vivid, realistic pen pictures of the famous Texan: "We walked towards the President's house, accompanied by the Secretary of the Navy, and as soon as we rose above the bank, we saw before us a level of far-extending prairie, destitute of timber, and rather poor soil. Houses half finished,
