This work presents Di Giorgio's codex of machine and fort drawings for the Duke of Urbino, his sketchbook of machines, and archeological sketches in the Uffizi. Illustrated.

The university has very different priorities from the salesroom, the museum from the antiques fair, but the challenge of instrument history is to integrate connoisseurship, technical insight and historical sensitivity, while not neglecting the trade institutions and practices of the makers and remaining familiar with instrument populations in both the captivity of museums and the relative freedom of the market-place. This volume is presented to Gerard Turner, who has been at the forefront of promoting instrument studies in recent years. After a twenty-five-year association with the Museum of the History of Science at Oxford, a Visiting Professorship in the History of Scientific Instruments was established for him at the Imperial College, London, in 1988, from where he has been able to increase his research in this field.