Letter of address on the Bunsen centenary, from British chemists, to the Pro Rector, University of Heidelberg On the centenary of the birth of Robert Bunsen, expressing 'the feelings of esteem and affection in which we hold his memory'. Signed by twenty-three British chemists, fomer students of the University of Heidelberg. The signatories include Thomas Edward Thorpe. With a press cutting verso, reproducing the address, with a brief caption. 31 March 1911