The Pythagorean Triangle by George Oliver

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South Africa

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The Science of Numbers

Book Contents:

The Pythagorean Triangle Explained, with a Dissertation on the Peculiarities of Masonic Number;
The Monad or Point Discussed as the Origin of All Calculation;
The Duad or Line Exemplified;
Illustration of the Triad or Superfice;
Progressive Generation of the Tetrad or Solid, Representing Fire;
Geometrical Application of the Pentad or Pyramid, Representing Water;
Infinite Divisibility of the Hexad or Double Triangle, Representing Earth;
Remarkable Properties of the Heptad;
Mysterious References of the Ogdoad or Cube, Representing Air;
Ancient Superstitions Attached to the Ennead or Triple Triangle;
Perfect Nature of the Decad or Circle, and the Application of the Dodecaedron as a Representation of the System of the Universe.