General Principle of Relativity: In Its Philosophical and Historical Aspect By: Herbert Wildon Carr

General View of Positivism By: Auguste Comte

Generation of Animals By: Aristotle

Genetic Effects of Radiation By: Isaac Asimov

Genetic Studies of Genius, Volume 1: Mental and Physical Traits of a Thousand Gifted Children By: Lewis Terman

George Müller of Bristol By: Arthur T. Pierson

Glimpses of Italian society in the eighteenth century By: Hester Lynch Piozzi

Golden Bough. A Study in Magic and Religion. Part 2. Taboo and the Perils of the Soul By: James Frazer

Golden Bough. A Study in Magic and Religion. Part 3. The Dying God By: James Frazer

Golden Bough: The Magic Art and the Evolution of Kings, Volume 1 By: James Frazer

Golden Bough: The Magic Art and the Evolution of Kings, Volume 2 By: James Frazer

Gorgias By: Plato (Πλάτων)

Great Astronomers By: Robert Stawell Ball

Greek Literature By: Henry Julius Wetenhall Tillyard

Gringo In Mañana-Land By: Harry La Tourette Foster

Half Hours With the Lower Animals By: Charles Holder

Handbook of Nature-Study, Part 1 By: Anna Botsford Comstock

Happy Unfortunate By: Robert Silverberg

Herbals, Their Origin and Evolution: A Chapter in the History of Botany By: Agnes Arber

Hereditary Genius By: Sir Francis Galton

History of Animals By: Aristotle

History of Astronomy By: Walter W. Bryant

History of Biology By: Louis Compton Miall

History of Chemistry By: Thomas Thomson

History of Chemistry, Volume II. From 1850-1910 By: Sir Thomas Edward Thorpe

History of Esculent Fish By: Roger North

Honeymoon in Space By: George Griffith

How to Do Chemical Tricks By: A. T. Anderson

How To Have Bird Neighbors By: S. Louise Patteson

How to Succeed By: Orison Swett Marden

Human Nature And Conduct - Part 1, The Place of Habit in Conduct By: John Dewey

Hunter Patrol By: H. Beam Piper and John McGuire