He also published a major treatise in 1871 called Geology and Mineralogy of Georgia for which he is most famous. Other published works include a pamphlet Diamonds and Precious Stones in Georgia in 1878 and a historical sketch in 1866, Report on the Lewis Mine Property, White County, Georgia.
He authored several significant works, including his magnum opus, Geology and Mineralogy of Georgia, published in 1871, for which he is most celebrated. Other notable publications include Diamonds and Precious Stones in Georgia pamphlet in 1878 and a historical account, Report on the Lewis Mine Property, White County, Georgia, in 1866.