Annual report of the Chief Signal-Officer, to the Secretary of War : for the year ... / Signal Office, War Department List of current journals / Imperial War Museum. Department of Printed Books Subject guide to books and informations sheets / Imperial War Museum. Department of Printed Books Song and sheet music catalogue / Imperial War Museum. Department of Printed Books u.s. army training manual Studies in citizenship for recruits / War Department , Adjutant General Office war department technical manual Operation of railroads : Transportation rules Charty 4. Italy used Gas in Ethiopia Chart 5. Japan used Gas in China Chart 1. The War Department expects the enemy to use gas No international law exists protecting us against use of gas CHart 17. How gas is spread: aircraft praying..[bombing], mortar, artillery Chart 18. Here are four other ways of spreading gas
