""Outlines of Ten Years' Investigations into the Phenomena of Modern Spiritualism"" is a book written by Thomas Pallister Barkas in 1862. The book is a collection of letters, lectures, and other materials that Barkas gathered during his ten-year investigation into the phenomenon of Spiritualism. Spiritualism was a popular movement in the 19th century that claimed to communicate with the dead through mediums. Barkas was a journalist and lecturer who...