O. H., a Negro aged 46, married, had been employed for five and one-half years in the corroding white lead department (Old Dutch process) of a plant manufacturing lead paints and oxides of lead for the making of storage batteries. There was a high exposure to lead dust, as evidenced by the fact that we have had a number of cases of lead poisoning from this plant which still used the Old Dutch process.
The patient had had no illness other than gonorrhea in 1912; he also had had antisyphilitic therapy consisting of thirty-two injections. He gave no history of tuberculosis, cancer or cardiorenal disease. He did have measles and chickenpox; he had had no operations or accidents.
His first complaint was in 1929 of discomfort high up under the sternum, which gradually migrated downward to the epigastrium and abdomen. For about three months after this onset he complained of