B. 106, published in 1513. The block is in the Court Library at Vienna. Thawing says it was designed by Burgkmair or Springinklee.
"Caput argutum". The phrase is from Virgil's description of the thorough-bred horse (Georg. iii). The above passage is introduced (with modifications) into Melchior Adam's Vitae Germ. Philos. (p.66). where this sentence runs: "The deep-thinking, serene-souled artist was seen unmistakably in his arched and lofty brow and in the fiery glance of his eye."
In the foregoing quotations the sentences which seem to me most reminiscent of Dürer's ideas are printed in italics.