SYNOPSIS OF CHAPTEES. IX. 



PliYsiological conditions. Inorganic salts. Long, hollow and flat 

 bones. Spine. Ossification. The skull. The cranial cavity. 

 Horned sheep. The parietal bones. Frontal, cerebrum, occipital 

 and temporal bones. 



CHAPTEE YI— THE DIGESTIVE SYSTEM. How 



sheep feed. Conformation of the mouth, lips, "teeth, jaws, 

 fibrous pad, tooth growth and development, incisors, molar teeth, 

 gums, cheeks, salivary glands and ducts. Great quantity of 

 saliva produced. Swallowing food. Rumination. Complica- 

 tion of the digestive organs. Their nervous energy. The eoso- 

 phagus. Procession of the food. The first, second, third and 

 fourth stomachs. How the weight of, food is supported in the 

 abdominal cavity. Compartments. Honeycomb formation. 

 Mucus secretion and liquids of the stomach. The object of 

 papillae, in third stomach. Why some sheep scour habitually. 

 Only one opening to the omasum. The true stomach, where the 

 gastric juice is secreted. JSTature of gastric juice; its specific 

 gravity. ■ Shape of the fourth stomach; the difference between 

 the mucous lining of it and other stomachs. The pylorus, how 

 constructed. 



CHAPTER YII— (a) RUMIITATION, how performed. 

 Food deposited in rumen. 



When rumination commences, sheep generally lies down. 

 Change of position of food in rumen. Liquid portion of food 

 passes to reticulum. How food is returned from the stomach to 

 the mouth. The oesophagus has a double duty to perform. 

 Dry condition of third stomach. The stomach proper. Stom- 

 ach eniployed by lambs when existing solely off the ewe's milk. 

 Development of first, second and third stomachs. Food con- 

 verted into chyme. 



(b) THE mTESTINAL ORGANS. The pyloric open- 

 ing permits passage of chyme from abomasum to intestines. 



