Hemoglobin is an iron-containing protein found in the blood of nearly all vertebrates and many invertebrates. It transports oxygen from the lungs or gills of an animal to the tissues. Four polypeptide chains, each wrapped in a specific way around its own heme group, make up the hemoglobin molecule.
Correction Appended. Alger Hiss, the erudite diplomat and Harvard-trained government lawyer who was convicted of perjury in an espionage case that became one of the great riddles of the Cold War, died yesterday at Lenox Hill Hospital in New York City. He was 92 and lived in Manhattan.
Julius and Ethel Rosenberg. Julius and Ethel Rosenberg were United States citizens who were executed on June 19, 1953 after being convicted of committing espionage for the Soviet Union. They were accused of transmitting nuclear weapon designs to the Soviet Union; at that time the United States was the only country with nuclear weapons. They were also accused of providing top-secret information about radar, sonar, and jet propulsion engines to the USSR. Other convicted co-conspirators were imprisoned, including Ethel's brot