The manuscript, of which there is some copy extant, consists of two books. The first,
Llibre de menescalia (
Book of Menescalia), is longer, more than ninety chapters, most of which deal with the external anatomy of the horse, qualities that must concur for the choice of the parents, coat, the way of breeding the foal, etc. The second,
Tractat de la menescalia de les mules (
Treatise on the Menescalia of Mules), is about the
mule, qualities related to its exterior and how to administer their food. It emphasizes the clarity and good method with which the author set out the same ideas, as well its being the first work of these characteristics to tie the horse with astrology, although it did not contain any worthy advance of consideration in the opinion of Pedro Darder. In all probability the author knew other texts on the subject, such as
Cirujia del cavall (
Horse Surgery)
by Gallien Corretger, Giordano Ruffo's
Treatise on Menescalia, and
The Book of Horses from Theodoric Borgognoni. The Aragonese
Sos Martín Martínez de Ampiés translated this book into Spanish and had it printed in Toledo in 1507. His work inspired authors such as Salvador Vila with
Dels nodriments dals cavalls i de les mules, Juan Álvarez de Salamiellas (
Libro de menescalia y de albeitería y física de las bestias), and Rinni (
Anatomia del cavalo infirmitate i suo remedyii). That book was spread in handwritten copies and also printed in the fifteenth and sixteenth centuries in its original Catalan version (Barcelona 1515 and 1523) and in Spanish (Zaragoza 1495, 1499, and 1545; Toledo 1507, 1511, and 1515), etc. == Author of the Book of the Coch ==