Selected mages of blood transfusion units, in watercolour and Conté pastels, using a limited palette based the Four Humours. In the Humourist system the human body was considered to contain blood, phlegm, yellow bile and black bile. An imbalance of these components was presumed to cause pain and illness.

My palette for these images includes:
Blood: Perylene Maroon, Sanguine
Phlegm: Titanium White
Black Bile: Black, Lunar Black