Hydration-rate Studies of Gypsum Plasters: Effects of Small Amounts of Dissolved Substances, Issue 5417, Part 5597

Recovery of Alumina from Anorthosite, San Gabriel Mountains, California, Using the Lime Soda Sinter Process: With a Section on Geology by Gordon B. Oakeshott, Issues 6241-6295

Heats and Free Energies of Formation of Gallium Sesquioxide and Scandium Sesquioxide: Issues 5900-5997

Defluorination of Fluorspar: Preparation of Aluminum Fluoride from Siliceous Fluorspar, Issues 6021-6040

The Nicaro (Cuba) Nickel Ores: Basic Studies, Including Differential Thermal Analysis in Controlled Atmospheres, Issues 5491-5510

Centrifugal Compressor for High-temperature Helium: Performance Characteristics, Issues 6261-6280