"The sacred tree in the great Hall of Heliopolis" (original drawing
in Lepsius, _Denkmaeler_ iii,169). Source:
_La Religion des Égyptiens_, Adolphe Erman,
Bibliotheque Historique (Payot: Paris, 1952; French reprint of Erman's _Die
Religion der Aegypter_, 1934), Fig. 38, p. 80.