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.
Senator Joseph McCarthy charges that communists have infiltrated the Central Intelligence Agency (CIA) and the atomic weapons industry. Although McCarthyâs accusations created a momentary controversy, they were quickly dismissed as mere sensationalism from a man whose career was rapidly slipping away. Senator McCarthy first made a name for himself in 1950 when he charged that over 200 âknown communistsâ were in the Department of State. During the next few years, he alleged that communists were in nearly every branch of the U.S. government.