A large number of the letters currently in transcription by the John Tyndall Correspondence Project were obtained at the Royal Institution of Great Britain. We also have letters from the following institutions:    Alexander Turnbull Library (NZ)    Berkshire Record Office    Berlin-Brandenburgische Akademie der Wissenschaften    Bodleian Library, Oxford University    British Library, Manuscript Collections    Cambridge University Library, Manuscripts and University Archives    College Archives, Imperial College London    Columbia University Library    Deutsches Museum    Edinburgh University Library, Special Collections    Huntington Library (USA)    Institute of Engineering and Technology    London Metropolitan University - Women's Library    London School of Economics    National Library of Ireland    National Library of Scotland    National Portrait Gallery Archive    Natural History Museum    Royal Botanic Gardens, Kew, Library and Archives    Royal College of Physicians of London    Royal Dublin Society    Royal Geographical Society    Royal Society    Royal Society of Chemistry    Science Museum Library    Senate House Library, University of London    Smithsonian Institution(Henry Collection)    Staatsbibliotek zu Berlin    Trinity College Dublin    Universität Braunschweig    Universität Heidelberg    University College London    University of Birmingham    University of Exeter    University of Liverpool    University of Manchester, John Rylands Library    University of Reading    University of St Andrews    Wellcome Library for the History and Understanding of Medicine    West Sussex Record Office    York University Special Collections The John Tyndall Correspondence Project seeks more letters! If you have information about the location of letters to or from John Tyndall, please contact: Dr. James Elwick Department of Science and Technology Studies 311 Bethune College, York University 4700 Keele St., Toronto, Canada M3J1P3 416.736.2100 xt 33923 jelwickATyorku.ca