Call Number (LC) Title Results
I 28.23:3048 Study of high manganese slags in relation to the treatment of low-grade manganiferous ores / 1
I 28.23:3049 Concentration of chromite / 1
I 28.23:3050 Leaching copper ores : advantages of wet-charging / 1
I 28.23:3051 Hauling coal safely with permissible storage-battery locomotives / 1
I 28.23:3051-3075 Oxygen as an aid in the dissolution of silver by cyanide from various silver minerals / 1
I 28.23:3052 Concentration tests on tailings from the washing plants on the Mesabi Range, Minn. / 1
I 28.23:3053 Official changes in the active list of permissible explosives and blasting devices for November, 1930 / 1
I 28.23:3054 Fundamental and applied research on the physical chemistry of steel making / 1
I 28.23:3055 Accelerated laboratory test for determination of slacking characteristics of coal / 1
I 28.23:3056 A device for determining work input to a laboratory ball mill / 1
I 28.23:3057 Processes for extracting radium from carnotite / 1
I 28.23:3058 Official changes in the active list of permissible explosives and blasting devices for December, 1930 / 2
I 28.23:3059 Development and production history on the Salt Flat and other fault fields of East Central, Texas / 1
I 28.23:3060 Rock-dusting a Pennsylvania coal mine / 1
I 28.23:3061 A study of the properties of polyhalite pertaining to the extraction of potash. 1
I 28.23:3062 A study of the properties of Texas polyhalite pertaining to the extraction of potash. 1
I 28.23:3063 Twenty-Second Semiannual Motor Gasoline Survey / 1
I 28.23:3064 Oxygen as an aid in the dissolution of silver by cyanide from various silver minerals / 1
I 28.23:3065 Trends in the production and uses of granite as dimension stone / 1
I 28.23:3066 The use of aluminum for oil lease tanks. 1