Acknowledgement is made to Yelda Nasifoglu and the other contributors to Hooke’s Books, who provided a model for the present site as well as useful advice on the form of this project. Acknowledgement is also made to the AHRC which funded the original work on Charles Hutton, and to the libraries of Yale University and the Royal Society which hold the manuscript and printed sources transcribed here. Extracts from the text of Catalogues A and B are provided by courtesy of The Lewis Walpole Library, Yale University; they are believed to be in the public domain.