Most, however, have four, the leaf stomach or psalterium being intercalated between the retinaculum and the abomasum.
Garrod has observed that the chamber of the stomach which varies most among the Pecora is the psalterium.
The psalterium is reduced to a mere vestige, and so the stomach has, as in the Tragulina, but three chambers.
psalterium juxta exemplar Alexandrinum bibliothecae regiae: Graecè, 8vo.
I have read the "psalterium Americanum" with care, and am impressed with its elegance, finish, and dignity.
And the fact that the "psalterium Americanum" contained no musical notes or directions also militated against its use.