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49 - The Story of the Master

In The Angel of the Revolution

Read by Kevin Green

George Griffith

The Angel of the Revolution: A Tale of the Coming Terror (1893) is a science fiction novel by English writer George Griffith. It was his fir…

Preface

In The Chemistry, Properties and Tests of Precious Stones

Read by Kevin Green

John Mastin

This is a good basic introduction to gemstones and their analysis. Admittedly a lot of the scientific tests have been superseded, but the ba…

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