Complex sentence: In 1902 LT McLean wrote "The Bluejacket's Manual" for the United States Naval Institute, a book intended to provide information useful to new recruits and be a reference for every person in Naval service.
Split into simpler sentences: In 1902 LT McLean wrote "The Bluejacket's Manual" for the United States Naval Institute. A book intended to provide information useful to new recruits and be a reference for every person in Naval service.