Diseased vessel wall and aorta valve, constricted due to cusp-like ossifying calcium deposits in its cavity and aneurysm in its wall: section seen from above. Watercolour by Barbara E. Nicholson, 1948.

Ashford, Middlesex, 1948.

1 painting : watercolour, with gouache ; sheet 6 x 6.2 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.

Aortic valve seen from above, anterior, cut edge of myocardium, right coronary artery, stenosed and calcified valve cusps, posterior, aneurysm, cut edge of aorta, left coronary artery, <...> aged 52 Lettering in black ink inscribed on mount, as key Bears number: 122/1948

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 32680i

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.