1. Russel H. Ewing, “The Legality of Chemical Warfare,” The American Law Review 61 (January–February 1927): p. 63.
2. Author of the highly influential treatise, The Influence of Sea Power upon History, 1660–1783 (1918).
3. Amos A. Fries and Clarence J. West, Chemical Warfare (New York: McGraw-Hill: 1921): p. 6.
4. Emphasis added. Article 23 (a) and (2), Hague Conference of 1899, II Convention, found in Russel H. Ewing, “The Legality of Chemical Warfare,” The American Law Review 61 (January–February 1927): p. 62.
5. Amos A. Fries and Clarence J. West, Chemical Warfare (New York: McGraw-Hill: 1921): p. 6.