Physiologus Theobaldi Episcopi - Bishop Theobald's Bestiary. Translation by Willis Barnstone. Published by Spiral Press in 1964.

Physiologus Theobaldi Episcopi de Duodecim Animalium. The Latin Text with an English Translation by Willis Barnstone. With woodcuts and lithographs by Rudy Pozzatti. Bloomington, Indiana University Press (1964). Printed by George Blumenthal at the Spiral Press. Contains nine two-page and two one-page lithographs of the beasts, real and legendary, described in the text.