Dental extraction involving drilling and electrically-detonated explosives: eight vignettes. Pen drawing by R. Bull.

A plant (Solanum sp.): flowering and fruiting stem with separate sectioned fruit and seed. Coloured etching by M. Bouchard, 1774.

A doctor on the telephone (which is linked up to a television screen) to a patient whom he can both observe and talk to from a distance; representing possible technological innovations. Reproduction of a drawing after D.L. Ghilchip, 1932.

A famous banyan tree (Ficus benghalensis L.), named Cubbeer Burr, on a river island in India. Lithograph by W. Stoker, 1811, after J. Forbes, 1778.

Skeletons. Pen and ink drawing by George Howard, Earl of Carlisle, 1865, after G.F. Ferrero, 1845.