The mystery of space: A Study of the Hyperspace Movement in the Light of the Evolution of New Psychic Faculties and an Inquiry Into the Genesis and Essential Nature of Space

Side-Lights on Astronomy and Kindred Fields of Popular Science

Simon Newcomb

A Budget of Paradoxes, Volume II

Augustus De Morgan

A Budget of Paradoxes, Volume II gathers a miscellany of 19th‑century scientific polemics, ranging from…

The Way To Geometry

Petrus Ramus

The Way to Geometry is a seventeenth‑century instructional treatise by Petrus Ramus that sets out the…

The Hindu-Arabic Numerals

Smith, David Eugene; Karpinski, Louis Charles

The work is a scholarly survey of the history of the numeral system that today bears the misleading label…

The Canterbury Puzzles, and Other Curious Problems

Henry Ernest Dudeney

Henry Ernest Dudeney’s The Canterbury Puzzles, and Other Curious Problems is a collection of recreational…

Amusements in Mathematics

Henry Ernest Dudeney

Henry Ernest Dudeney’s Amusements in Mathematics is a collection of recreational puzzles that blends the…