. "Correspondence with Singer, Charles"@en . . "This material has been digitised. Readers should book a reading room terminal to access it."@en . "Charles Joseph Singer (MA, DM, D.Litt.,Hon D.Sc., FRCP) was a qualified doctor and senior academic in the field of medicine as well as a historian of science, technology and medicine."@en . . "Correspondence general."@en . "24 letters"@en . . . "WL3000/9/1/1275" . . . . "See also Singer’s Correspondence re victimisation of academics in Nazi Germany."@en . .