THE HISTORY OF SCIENCE & TECHNOLOGY
Series One: The Papers of Sir Hans Sloane, 1660-1753 from the British Library, London

Part 1: Science & Society, 1660-1773

TECHNICAL NOTE

Our microfilm publications are prepared and produced in accordance with recommended and established guidelines for the production of microfilm of superior quality. These conform to the recommendations of the standard guides to good microfilming and micropublishing practice.

The original material reproduced in this project and made available under exclusive licence by Adam Matthew Publications Ltd was newly filmed following our instructions by the Reprographic section of the British Library. An earlier film edition made in the late 1960s does not meet archival standards. Additional material was filmed by Micromedia in Bicester.

Attention should be drawn to the nature of some of the original material. Sir Hans Sloane accumulated his correspondence over a period of about sixty years. It was not always bound into volumes and some letters show signs of fading or staining due to their exposure to light. The binding process has caused few problems, but additional stains have been caused by users thumbing through the volumes. Given that the correspondence is from a wide variety of correspondents there is a great deal of variation both in the types and colours of paper and in the colour and quality of inks used. Some letters are almost illegible in the original, but these are few and we have included the best photographic copies possible. Other problems with the letters include show-through, water staining and fading. Every effort has been made to minimise these difficulties. Nevertheless these original characteristics present difficulties of image and contrast which stringent tests and variations of density cannot entirely overcome.

We have exerted the most responsible care and attention in preparing this project for micropublication and this microfilm publication aims to meet the standards established by the Association for Information and Image Management (AIIM) and the American National Standards Institute (ANSI).

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