Hugh Dinsmore Miser—USGS—Manganese deposits of the Batesville District, Arkansas.
Ernest Lester Jones Jr.—US Coast and Geodetic Survey—Manganese deposits of the Colorado River desert region.
Joseph Thomas Pardee—USGS—Manganese deposits of the northwestern states.
Ernest Francis Burchard—USGS—Manganese deposits of Cuba.
Donnel Foster Hewett—USGS—Summary: manganese deposits.
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