Medical Definition of Red blood cells. Red blood cells: The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them to transport oxygen (and carbon dioxide). Hemoglobin, aside from being a transport molecule, is a pigment. It gives the cells their red color (and their name).
Alexander Milne Calder (August 23, 1846 â June 4, 1923) was a Scottish American sculptor best known for the architectural sculpture of Philadelphia City Hall. Both his son, Alexander Stirling Calder, and grandson, Alexander Sandy Calder, became significant sculptors in the 20th century.
His home life was what was important to him. On 11 August 1852, Hallam Tennyson was born, followed by Lionel Tennyson on 16 March 1854. Alfred was a doting father and spoiled the boys a little. Alfred published four of the Idylls of the King, his epic on the story of King Arthur and Camelot, in 1859.