Soon after he was raised to the dignity of postmaster another piece of good fortune came in his way. Sangamon County covered a territory some forty miles long by fifty wide, and almost every citizen in it seemed intent on buying or selling land, laying out new roads, or locating some future city. John Calhoun, the county surveyor, therefore, found himself with far more work than he could personally attend to, and had to appoint deputies to assist him. Learning the high esteem in which Lincoln was held by the people of New Salem, he wisely concluded to make him a deputy, although they differed in politics. It was a flattering offer, and Lincoln accepted gladly. Of course he knew almost nothing about surveying, but he got a compass and chain, and, as he tells us, "studied Flint and Gibson a little, and went at it." The surveyor, who was a man of talent and education, not only gave Lincoln the appointment, but, it is said, lent him the book in which to study the art. Lincoln carried the book to his friend Mentor Graham, and "went at it" to such purpose that in six weeks he was ready to begin the practice of his new profession. Like Washington, who, it will be remembered, followed the same calling in his youth, he became an excellent surveyor.