""The Letter Humanum Genus and Freemasonry"" by Melville Rosyn Grant is a book that delves into the relationship between the Catholic Church and Freemasonry. The book is centered around the encyclical letter ""Humanum Genus"" written by Pope Leo XIII in 1884, which condemned Freemasonry as a secret society that was opposed to the Church's teachings and values. Grant analyzes the historical context of the letter and its impact on the Church's stance...