Unit I Notes: Chiswick Press Printing, Simson Numbering & Reception

Historical, Typographic & Epistemological Commentary

Chiswick Press Four-Run Relief Registration

Printed in 1847 by Charles Whittingham the Younger for publisher William Pickering, Byrne’s Euclid predated commercial chromolithography in mathematical publishing. Every page required four separate letterpress/woodblock press runs:

  1. Caslon Lampblack (text, operators, black lines, and Renaissance woodcut initials),

  2. Vermilion Red,

  3. Prussian Blue, and

  4. Ochre-Gamboge Yellow.

As Ruari McLean documented in Victorian Book Design and Colour Printing (1963), aligning tiny inline woodblock rules and angle wedges inside Caslon text lines to sub-millimeter tolerances was an extraordinary feat of hand-press craftsmanship—explaining its steep 25-shilling price and commercial scarcity prior to the 1851 Great Exhibition.

Simson’s Axioms XI & XII vs. Heiberg / Heath

Readers cross-referencing geometor/euclid (Heath 1908) and geometor/hilbert should note two pivotal numbering shifts inherited from Robert Simson:

  • Right-Angle Equality: Listed by Byrne as Axiom XI, whereas Heiberg/Heath restore it to Postulate 4 ([I.post.4], G.27).

  • The Parallel Postulate: Listed by Byrne as Axiom XII, whereas Heiberg/Heath restore it to Postulate 5 ([I.post.5], G.28).

From De Morgan’s Skepticism to Tufte & Rougeux

While Augustus De Morgan (1872) dismissed Byrne’s colours as a pedagogical “trick,” twentieth- and twenty-first-century scholarship vindicated Byrne’s architecture: