American Philosophical Society 

Bank of England 

Bedfordshire Record Office 

Birmingham Assay Office 

Birmingham University Library 

Bristol Record Office 

British Library, Department of Manuscripts 

Cambridge University Library 

Camden Archive 

Cumbrian County Record Office 

Devonshire Mss Collection, Chatsworth 

Fitzwilliam Museum, Cambridge 

Gloucester Record Office 

Greater London Record Office 

Historical Society of Pennsylvania 

Holborn Public Library 

Lambeth Archive 

Lancashire Record Office 

National Archives of Canada 

Natural History Museum, Department of Botany 

Public Record Office, Chancery Lane 

Royal Astronomical Society 

Royal Botanic Garden, Kew 

Royal Greenwich Observatory 

Royal Institution of Great Britain 

Royal Society of Arts 

Royal Society of London 

Sheffield Central Library 

Society of Antiquaries of London 

University of Wales, Swansea Library 

Wellcome Historical Medical Library 

Westminster Archive 

Whitby Literary and Philosophical Society 

Yale University Library