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The Chemical Constituents of the Active Principle of the Ava Root

Read by J. M. Smallheer


Alice A. Ball


The Chemical Constituents of Piper Methysticum or The Chemical Constituents of the Active Principle of The Ava Root is the text of a Master’…

The Kingdom of the Heavens

Read by J. M. Smallheer


Charles Nordmann


Thought is the most swift and subtle of vehicles. Let us therefore use that craft to reach a trysting-place in the skies. The light which r…

Part 3 The Evidences of Evolution – Section 3 Paleontology – Chapter 32a Origin…

In Organic Evolution

Read by J. M. Smallheer


Richard Swann Lull


Organic Evolution is a college textbook that describes the mechanism of biological evolution by natural selection. It then explores the evid…

12 - The Brotherhood of the Dust

In The Adventures of a Grain of Dust

Read by J. M. Smallheer


Hallam Hawksworth


This charming book for children is full of interesting facts about all sorts of plants, insects, birds and animals and how they all help to …

On the Part Played by Accident in Discovery

In Short Nonfiction Collection Vol. 032

Read by J. M. Smallheer


Ernst Mach


Fifteen short nonfiction works in the public domain, independently chosen by the readers. Topics include the history of aeroplanes, politica…

What We Breathe

In Bacteria in Daily Life

Read by J. M. Smallheer


Grace Coleridge Frankland


The author provides a fascinating look at the emerging science of bacteriology at the start of the twentieth century including early progres…

Ch. IX: Movements of the Earth's Crust, pt 1

In The Elements of Geology

Read by J. M. Smallheer


William Harmon Norton


Geology is a science of such rapid growth that no apology is expected when from time to time a new text-book is added to those already in th…

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