William C. Irvine (missionary)
William Carleton Irvine (3 June 1871 – 5 September 1946) was a missionary, writer and the founding editor of the "Indian Christian" magazine. Biography. Irvine was a superintendent of Belgaum Leprosy Hospital at Hindalga for 25 years. He came to India from New Zealand. His best known work is "Timely Warnings" (1917), also known as "Modern Heresies Exposed" in its second edition and as "Heresies Exposed" subsequent to the 1921 edition. His books "25 Years' Mission Work Among the Lepers of India", "Riches of the Gentiles" and other works also received wide distribution. "Heresies Exposed" was one  of the first widely available books to critically review new religious movements such as Christian Scientists, Jehovah's Witnesses, Seventh Day Adventists, Cooneyites, Christadelphians, Pentecostals, Theosophists and other non-mainstream groups that came to increasing prominence during the 20th century. It has seen multiple editions and printings, and remains in print today.