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Interactive HTML Tutorial
Frank Lee
College Physics I
OpenStax
Relativity: The Special and General Theory
Albert Einstein
Brief Calculus
Benjamin Crowell
The Descent of Man and Selection
Charles Darwin
On the Origin of Species
Charles Darwin
The Life of the Spider
J. Henri Fabre
The Voyage of the Beagle
Charles Darwin
Great Astronomers
R. S. Ball
The Life of the Bee
Maurice Maeterlinck
Dream Psychology
Sigmund Freud
Three Contributions to the Theory of Sex
Sigmund Freud
Surgical Anatomy
Joseph Maclise
The Outline of Science
J. Arthur Thomson
Searchlights on Health
B. G. Jefferis and J. L. Nichols
Faraday as a Discoverer
John Tyndall
Discourses Biological and Geological Essays
Thomas Henry Huxley
The Edinburgh Lectures on Mental Science
Thomas Troward