Blood blood clotting in a transparent container. When blood is drawn in a glass container and left undisturbed for about an hour, four different layers can be seen. A dark clot forms at the bottom (the "black bile"). Above the clot is a layer of red blood cells (the "blood"). Above this is a whitish layer of white blood cells (the "phlegm"). The top layer is clear yellow serum (the "yellow bile"). The ABO blood group system was discovered in the year 1900 by Karl Landsteiner. Jan Janský is credited with the first classification of blood into the four types (A,
Blood, Sweat & Tears has been reissued by Mobile Fidelity. The later Columbia albums have been reissued by Wounded Bird Records, and Rhino Records has reissued "Nuclear Blues". "Brand New Day" was issued on CD in Russia in 2002, although the disc has not received authorization from copyright holders or Record Companies (counterfeit). Original eight Other members Blood, Sweat & Tears Blood, Sweat & Tears is a jazz-rock American music group. They are noted for their combination of brass and rock band instrumentation. The group recorded songs by rock/folk songwriters such as Laura Nyro, James Taylor, The Band and the Rolling Stones as well