A body of this kind, where there is fatty degeneration of the arteries, is sometimes hard to embalm. The walls of the artery will be very much weakened, and too much pressure must not be made on them while injecting fluid. Inject the fluid so that it will take several hours to fill the tissues. The pressure should be gentle and regular when the aspirator and injector pump is used. If this precaution is taken often the whole body can be embalmed without a rupture of the arterial system, the fluid reaching all the extremities by means of collateral circulation. If the embalmer should be so unfortunate as to rupture the circulation then he will have to resort to cavity embalming, and the subcutaneous tissues will have to be embalmed by the hollow needle trocar. =Aneurism.=—_Definition._—An aneurism is a circumscribed dilatation of an artery, formed by the giving away of one or more of its coats. A false aneurism is where there is a rupture of the coats, and the blood is found in the adjacent tissues. _Treatment._—Drain blood from a large vein. Inject half strength fluid for the first part of the injection, followed by enough normal fluid to secure preservation. The aneurism itself, will not affect the circulation of fluid to any great extent. Massage the face downward. Give a complete cavity injection. For transportation, govern yourself according to the transportation rules. CHAPTER XXII. TREATMENT OF SPECIAL DISEASES.—Continued. DISEASES OF THE DIGESTIVE SYSTEM. =Jaundice.=—_Synonym._—Icterus. _Definition._—Jaundice is a symptom rather than a disease, and is found in the various affections of the liver. It is characterized by a deposit of bilirubin in the various structures and fluids of the body, which gives them a yellow or jaundiced hue. _Etiology._—Most pathologists agree that all the forms of jaundice can only come from obstruction. The obstruction is due to inflammation tumefaction of the duodenum or bile-ducts; to foreign bodies, such as gall stones or parasites, within the ducts; tumors within the duct or by pressure from without, such as tumors, gravid uterus, or fecal matter; or to stricture or obliteration of the duct. =Catarrhal Jaundice.=—_Definition._—Catarrhal inflammation of the lining membrane of the biliary ducts, and the duodenum, and attended with discoloration of the skin and tissues from the consequent retention and absorption of the bile. _Pathology._—That portion of the duct lying in the intestines is more frequently and seriously affected, though the inflammation may extend to the cystic and even the hepatic duct. The membrane lining the ducts is swollen and inflamed. The liver is usually congested, slightly enlarged, and of a deep yellow color. The gall bladder is usually distended with bile. The ducts are occluded by the swollen mucosa and plugs of inspissated mucous.