Large left hydronephrosis with multiple opaque renal calculi in a 47-year old man with urinary infection: detail showing section of kidney with shell-like calculi and stones. Watercolour by Barbara E. Nicholson, 1950.

Ashford, Middlesex, 1950.

1 painting : watercolour, with gouache ; sheet 26 x 12.4 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.

Typed accompanying note on patient history includes a pathological report stating the stones consist of a mixture of calcium phosphate and carbonate. Shell-like deposits are mainly phosphate with a small amount of organic material Bears number: 199/1950

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 33778i

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.