Catalogue of an exhibition held in 1986, focussing on the development of processes by which original botanical drawings were reproduced in print. It includes examples from many great artists, including Ehret, Edwards, Francis Bauer, Thomas Bewick (reproducing the work of Henderson) and Besler (engraved by Killin). The commentary includes several hints as to how the different methods of printing can be identified, and describes the complex procedure involved in producing colour relief half-tones. 167 pp.