—F. M., male, aged 33, carpenter, native of the United States.
—The cause of the father's death is unknown, although he lived to an advanced age. Mother died of mammary cancer. One brother died from pulmonary tuberculosis.
—The patient had gonorrhea in early youth. About twelve years ago he had apparently a first attack of appendicitis. Symptoms continued for about five days and then subsided. The patient has always been rather susceptible to "colds," with a vague history of having had one or two very persistent attacks. Six years ago he had a pleurisy with effusion, which necessitated my removing about 500 c.c. of clear fluid from the left pleural sac. Convalescence was uneventful. About four years ago I operated on him for perityphlitic abscess caused by ruptured and partly gangrenous appendix. During the first week fragments of a fecal concretion about the size and