Brown hard covered book. Chapter 16 is on gold deposits and discusses the discovery of gold in California and Australia.Brown hard covered book geology, water, rivers, the atlantic, great deep, africa, australian interior, eyre's expedition, murray river, darling river, earthqaukes, leichardt, moreton bay, volcanos, darwin's theory, evolution, egyptian race, human remains in caverns and gravel, rocks, metamorphism, iron ores, coal, coal fields, gold deposits, california, water-glass, artificial stone, porous stones, cements