Diseased aortic valve in a 74-year old man with terminal congestive heart failure: section and detail of valve and cusps showing gross stenosis. Watercolour by Barbara E. Nicholson, 1956.

Ashford, Middlesex, 1956.

1 painting : watercolour, with gouache ; sheet 17.1 x 12.7 cm

Barbara Evelyn Nicholson (1906 – 1978) trained at the Royal College of Art, graduating in 1923. She began her artistic career as a medical illustrator and was a founder member of the Medical Artists Association, where she is recorded as serving on an exhibition committee in October 1949. By 1951, she had illustrated G.F. Gibberd, A short textbook of midwifery (2nd ed., London: J. & A. Churchill, 1941) and Philip Wiles, Essentials of orthopaedics (London: J. & A. Churchill, 1949). The Medical Artists Association records last list her, in 1951. In the 1950s her focus moved to botanical subjects and from the late 1950s – 1970s she was a prolific botanical illustrator.

Anterior cusp, left, right posterior cusp, aortic valve cut open and viewed from the right Lettering inscribed in pencil as key, typed accompanying note with patient history states that mitral valve remained normal Bears number: 466/1956

The watercolours and pen and ink drawings held by Wellcome Collection were painted by Barbara Nicholson at Ashford Hospital, Ashford, Middlesex, between 1946 and 1951, at the request of the surgeon Norman Matheson.

Wellcome Collection 35549i

Presented to the Wellcome Institute Library in 1987 by Ashford Postgraduate Medical Centre, as part of a collection of medical illustrations by Barbara E. Nicholson.