...supply of which in war dependence must be placed in whole or in substantial part on sources outside the continental limits of the United States, and for which...control measures will be necessary. Critical materials. — Critical materials are those essential to national defense, the procurement problems of which in...

...supply of which in war dependence must be placed in whole or in large part upon sources outside the continental limits of the United States, and for which...strict conservation and distribution control measures are necessary. The following list includes materials considered strategic by the Army and Navy Munitions...

...supply of which in war dependence must be placed in whole or in substantial part on sources outside the continental limits of the United States, and for which...defense, the procurement problems of which in war would l>e less difficult than those of strategic materials, either because they have a lesser degree of essentiality...

...must be placed in whole, or in substantial part, on sources outside the continental limits of the US ; and for which strict conservation and distribution control measures will be necessary. 1. Section 5a — The Assistant Secretary of War, National Defense Act, June, 1920. Data concerning...

...supply of which in war would have to be drawn in whole or in substantial part from sources outside the continental limits of the United States, and for which...strict conservation and distribution control measures would be necessary. There are 14 materials as follows, in this list : 1S TABLE 27.— S/iare of world...

...of which in war, dependence must be placed in whole, or in substantial part, on sources outside the continental limits of the United States; and for which...control measures will be necessary. Critical materials: Critical materials are those essential to national defense, the procurement problem of which in war...

...of which in war, dependence must be placed in whole, or in substantial part, on sources outside the continental limits of the United States; and for which...control measures will be necessary. Critical materials: Critical materials are those essential to national defense, the procurement problem of which in war...

...for the supply of which in war dependence must be placed in whole, or in part, on sources outside the continental limits of the United States and for which...and distribution control measures will be necessary. ' "There are today seventeen items listed as strategic materials: Aluminum, Antimony, Chromium, Coconut...

...Manila fiber Mercury Mica Nickel Quartz crystal Quinine Rubber Silk Tin Tungsten CRITICAL MATERIALS : "Those essential to national defense, the procurement...less difficult than those of strategic materials*" Aluminum Asbestos Cork Graphite Hides Iodine Kapok Opium Optical glass Phenol Platinum Tanning materials...

...substantial part, on sources outside the continental limits of the United States." Critical Materials: "Those essential to national defense, the procurement...less difficult than those of strategic materials." Copper was classed as a nonstrategic and noncritical metal because the depression in the early 1930's...