""Recent Improvements In The Art Of Signaling For Military And Commercial Purposes"" is a book written by John P. Finley in 1888. The book is a comprehensive guide that explores the latest advancements in the field of signaling, both for military and commercial purposes. The author presents a detailed study of the various methods of signaling, including the use of flags, lights, telegraphy, and other forms of communication. The book is divided into...