Original pre-WWII book on military hygiene with lessons learned from World War I. Used as a text book by the army and "organized militia" it later became a library book at Fort F.E. Warren, which is now an Air Force Base. Overall very good condition with wear to covers but inside is in great condition. Of particular note is a special supplement for "The Prevention of Mental and Nervous Diseases" which has now become known as Post Traumatic Stress Disorder (PTSD).