From abstract: A radioactivity survey of the Black Rock district in southern Yavapai County, Ariz, disclosed anomalous radioactivity in several localities, chiefly at the Abe Lincoln mine in sec. 11, T. 8 N., R. 3 W., about 14 road miles northeast of Wickenburg. The Abe Lincoln vein system occupies a fault zone which strikes N. 500 E. and dips from 780 to 870 NW. Moderate radioactivity is present at the Bracken property and at several other localities in the Black Rock district. The writers recommend re-opening the Abe Lincoln mine to permit a more extensive examination of the vein.

Report discussing uranium oxides, their thermodynamic relations, and how these relations connect to the oxidation states of uranium ores found at the Colorado Plateaus. This report provides information regarding thermodynamic properties of some compounds and ions of the U-O-H2O system, discussion and interpretation of thermodynamic properties, and a summary with conclusion.

Report discussing the Shinarump Conglomerate, the channels leading to this conglomerate, and the uranium minerals which localize at the base of this conglomerate via the channel sediments. The geology of the area, information on the channels, and information regarding the localization of uranium in channels are included.

A report regarding recommendations for an exploration program on the Mitchell Mesa Monument Valley Area, Arizona. Concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission

A report regarding localization of uranium minerals in channel sediments at the base of the Shinarump conglomerate, Monument Valley, Arizona. This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.