II. FORM, AND MATHEMATICAL PRINCIPLES
Ball, W. W. R. "Mathematical Recreations and Essays," 1905, pp. 174–80.
Tarry, G. "Le Problème des Labyrinthes," in Nouvelles Annales de Mathématiques, Vol. XIV, 1895, pp. 187–90.
Lucas, E. "Récréations Mathématiques," 1882–94.
Wolters, P. "Darstellungen des Labyrinths," in Sitzungsberichte der phil., &c., Classe der k.b. Akademie zu München, 1907.
Meyer, W. "Ein Labyrinth mit Versen" in Sitz. der phil., &c., Classe der k.b. Ak. zu München, 1882, Bd. II, Heft. I, pp. 267–300, and Nachtrag on p. 400.
Krause, E. "Die nordische Herkunft der Trojasage," 1893.
(Shows how typical labyrinth figures may be derived from Northumbrian rock engravings.)
Reinach, S. "Cultes, Mythes, et Réligions," 1906, Vol. II, pp. 234, etc.
(Derivation of swastika, triskelion, etc.)
Dudeney, H. E. "Amusements in Mathematics," 1917, pp. 127–37.
Inwards, R., on the Labyrinth on the Coins of Knossos in Knowledge, October 1892.
(Shows how typical labyrinth figures may be derived from Northumbrian rock engravings.)
(Derivation of swastika, triskelion, etc.)