1915. The lecture, Discoveries and Inventions, by our greatest American, presents a phase of Lincoln's activity about which little is generally known. It shows as clearly as any of his other writings how great was Lincoln's knowledge of the progress of mankind, particularly as related in the Bible, and it reveals also his debt to that Book of Books for inspiration and illustration, as well as his masterly use of pure English, largely gained through that study. To date, this lecture is not included in any collection of Lincoln's speeches. See other titles by this author available from Kessinger Publishing.