This book is about the archaeology of science, or what can be learnt from the systematic examination of the artefacts made by precision craftsmen for the study of the natural world. An international authority on historical scientific instruments, Gerard Turner has collected here his essays on European astrolabes and related topics. By 1600 the astrolabe had nearly ceased to be made and used in the West, and before that date there was little of the source material for the study of instruments that exists for more modern times. It is necessary to 'read' the instruments themselves, and astrolabes in particular are rich in all sorts of information, mathematical, astronomical, metallurgical, in addition to what they can reveal about craftsmanship, the existence of workshops, and economic and social conditions. There is a strong forensic element in instrument research, and Gerard Turner's achievements include the identification of three astrolabes made by Gerard Mercator, all of whose instruments were thought to have been destroyed. Other essays deal with the discovery of an important late 16th-century Florentine workshop, and of a group of mid-15th-century German astrolabes linked to Regiomontanus.

This late 18th Century Coffee House society provided a group of natural philosophers with the opportunity to discuss the topics that most interested them. Though the Minute books deal with some practical and procedural matters, they mostly record the discussions, which centred around chemistry, and in particular the phlogiston theory. Contemporary accounts of such meetings are extremely rare, and the survival of the manuscript copy, made by William Nicholson, a member and secretary of the society is remarkable. In this book, the original has been reproduced. The editors also include an account of the membership, 55 in number and of whom 33 were Fellows of the Royal Society of London, and background essays by Jan Golinski and Larry Stewart. Many of the members were medical, and some were lawyers and clergymen, but all shared a fascination for practical science and technology. Readers across a broad range of disciplines will find the book of great interest.

The first part of this book describes the development of the trade in scientific instruments in Elizabethan London. In the second part, the author describes in detail the provenance and context of all the existing scientific instruments from this period. Highly illustrated throughout this book is a fascinating and scholarly study of a neglected period.