Series of papers organising the sending of courtesy offprints of Von Hevesy lecture Series of papers organising the sending of courtesy offprints of Von Hevesy lecture. Two handwritten notes organising a letter and complimentary offprint of Professor Mallard's Lecture to Von Hevesy's daughter and Professor Horst. Then two photocopies of the actual note and letter sent, a second copy of the same letter and a 'with compliments' slip from Professor Horst to Professor Mallard. 13 April 1988-3 September 1988