Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

This 1986 book describes the state of research in the area of secondary metabolism in plant cell and tissue culture. Such cultures are a major tool in horticulture and agriculture, and in the chemical industry. The wide range of applications is reflected in the articles presented here, which are grouped according to topic and derive from the meeting held by the International Association of Plant Cell and Tissue Culture in Sheffield in July 1985. This book was a major contribution to the development of plant biotechnology. It will remain of interest to researchers today.