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.
In addition, by his second wife Elizabeth Cunningham, daughter of William Cunningham of Glengarnock, Alexander had a son, John Shaw, 1st of Greenock, ancestor of the Shaws of Greenock, and a daughter, Jonet Shaw, who died Feb. 1573.