Ralph Erskine Van Alstine

1914

• Copper deposits of the Kotsina-Kuskulana district, Alaska
• Fluorine in a closed drainage basin, Saguache and Alamosa Counties, Colorado
• Fluorspar resources of Africa
• Geology and mineral deposits of the Poncha Springs NE quadrangle, Chaffee County, Colorado
• Geology and mineral deposits of the Poncha Springs SE quadrangle, Chaffee County, Colorado
• Geology and mineral deposits of the St. Lawrence area, Burin Peninsula, Newfoundland
• Investigaciones de los principales distritos de fluorita en México