Henry Drummond was a Scottish evangelist, writer and lecturer. He assisted Dwight L. Moody during his revival campaigns, was a lecturer in natural science and was one of the first writers to try to reconcile religion and science. Although he never received a degree, he was an ordained minister and a professor of theology. He also wrote several books.The Henry Drummond Collection Volume I includes four of his inspiring writings: The Changed Life, The Program of Christianity, Eternal Life and Pax Vobiscom.