J. W. Gregory

1864 – 1932

• The Great Rift Valley
• Australia
• Climatic variations
• Evolution of the Essex Rivers and of the lower Thames
• Geography, structural, physical, and comparative
• Geography, structural, physical, and comparative
• Geology
• Geology of to-day
• Human migration & the future
• The climate of Australasia in reference to its control by the Southern Ocean
• The dead heart of Australia
• The elements of economic geology