Symbolic Logic (1897)

Letters of a Radio-Engineer to His Son (1922)

The Discovery of Radium by Marie Curie

Logic – Deductive and Inductive (1898)

Vikram and the Vampire; Or, Tales of Hindu Devilry by Sir Richard Burton (1870)

How We Think, by John Dewey (1910)

The History and Philosophy of Project Gutenberg

The Art of Travel (1872)

The Pencil of Nature (1846)

Technology Bookshelf

Little Wars – a game by H.G. Wells

The Theory of the Leisure Class (1899) by Thorstein Veblen

A Journal of the Plague Year: Daniel Defoe's Account of the Great Plague of 1665

The Oak Ridge ALGOL Compiler for the CDC 1604

Struggles And Triumphs: Or, Forty Years' Recollections of P.T. Barnum (1872)

Eight or Nine Wise Words about Letter-Writing by Lewis Carroll (1890)

The Automobile Storage Battery – Its Care and Repair (1922)