. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 320 AYES. in a zonular form : they are chiefly remarkable for their large cavity and wide orifice. In the Common Fowl and Turkey the glands are more complex, and form a complete circle. In the Cursores the arrangement of the glands is different in almost every genus. In the Ostrich they are of an extremely complicated structure, and are extended in unusual numbers over an oval space on the left side of the proventhculus, which reaches from the top to the bottom of the cavity, and is about four inches broad. The Rhea diff
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 320 AYES. in a zonular form : they are chiefly remarkable for their large cavity and wide orifice. In the Common Fowl and Turkey the glands are more complex, and form a complete circle. In the Cursores the arrangement of the glands is different in almost every genus. In the Ostrich they are of an extremely complicated structure, and are extended in unusual numbers over an oval space on the left side of the proventhculus, which reaches from the top to the bottom of the cavity, and is about four inches broad. The Rhea differs from the other Struthious birds in having the solvent glands aggregated into a single circular patch, which occupies the posterior side of the proventricular cavity. In the Emeu the gastric glands are scattered over the whole inner surface of the proven- triculus, and are of large size; they terminate towards the gizzard in two oblique lines. In the Cassowary the glands are dispersed over the proventriculus with a similar degree of uniformity ; but they are smaller, and their lower boundary is transverse. Among the Grallatores, the Marabou, or Gigantic Crane, (Ciconia Argalu and Mia- rabou,) has the nearest affinity to the Rhea in the structure and disposition of the gastric glands; they are each composed of an aggre- gate of five or six follicles, terminating in the proventriculus by a common aperture; and they are disposed in two compact oval masses, one on the anterior, the other on the posterior surface of the cavity. In the Heron (Ardcn cinerici) the solvent glands are of more sim- ple structure, and are more dispersed over the proventriculns; but still they are most nume- rous on the anterior and posterior surfaces. In the Flamingo the gastric glands are short and simple follicles, arranged in two large oval groups, which blend together at their edges. The Natatorcs present considerable differ- ences among themselves in the disposition of the solvent glands. In the C
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