For want of a due share of vital action in the abomasum, (fourth stomach,) it was unable to perform its part in the physiological process of digestion; hence the accumulation found in the manyplus. The causes of the detachment of laminæ, and the blanched appearances,--for it was as white as new linen,--were partly chemical and partly mechanical. The mechanical obstruction consisted in over-distention of the manyplus from food, thereby obstructing the circulation of the blood through its parietes, (walls,) and depriving it not only of nutriment, from the nerves of nutrition, but paralyzing its secretive function. It then became a prey to chemical action and decomposition. The indications of cure were, to arouse the digestive organs by stimulants, then by anti-spasmodic, relaxing, and tonic medicines, (for which see APPENDIX:) the digestive organs would probably have recommenced their healthy action, and the life of the animal might have been saved. Oil and grease, of every description and kind, are not suitable remedies to administer to cattle when laboring under indigestion; for at best their action is purely mechanical, and cannot be assimilated by the nutritive function so as to act medicinally. Linseed oil is, however, absorbed and diffused. If the animal labors under obstinate constipation, and it is evident that the obstruction is confined to the intestines, then we may resort to a dose of oil. The reader will perceive the benefits to be derived from a knowledge of animal physiology and veterinary medicine, when based upon sound principles and common sense. He will also see the importance of having educated and honorable men employed in cattle-doctoring. No doubt there are such; but surely something is "rotten in Denmark;" for we are repeatedly told by our patrons that they "judge of the merits of the veterinary art by the men they find engaged in it."