Tycho Brahe's triangular astronomical sextant Product:Greetings card This cartoon was prompted by

This cartoon was prompted by the publication of Andrew Mearns' The Bitter Cry of Outcast London

with owners including King George V

The facing page is a corrected [in pencil] proof version of the captions

19th October 1952

Tycho Brahe's triangular astronomical sextant Product:Greetings card This cartoon was prompted byEngraving of Tycho Brahe's triangular astronomical sextant for the determination of distances ('Sextans astronomicus trigonicus pro distantiis rimandis'), in his Uraniborg observatory on the island of Hven. Illustration from Astronomia instauratae mechanica, by Tycho Brahe (Hamburg, 1598). Original: engraving. 1598