Correspondents include: Dr R Deraemaeker; Dr Elizabeth M Deucher, Embryologists' Club, University College London; Deutschen Geologishen Gesellschaft; Satwant Singh Dhaliwal (with some correspondence about with N Avrion Mitchison); Dr M R Dhanda; Prof J Henry Dible; Lee R Dice; Margaret M Dickie; Prof Lawrence S Dillon; Herbert Dingle; Dr Marjorie Dinsley; Directory of Educational Specialists; Discovery, Robin Clarke, Gerald Leach, S E Gamarekian, Editors; Jerome S Djangmah; L Dmochowski; Dr N Dobrovolskaia-Zavadskaia; Prof Th Dodzhansky; Dr J M (and Mrs) Dodd; Sir Charles Dodds; Dr Kenneth S Dodds; W Doerr, Berichte uber die Allgemeine under Spezielle Pathologie: Dr Peter Dohrn; Dr Milan Dokladal; Geneva A Doland; Mrs F Doljanski-Ettinger; Richard Doll; Dr C Domenjoud; Prof I Doniach; Prof Desmond T Donovan; Dr L C Doubleday; Miss J M Drayner; Dreverman; Prof G C Drew; "Paul"; Dr K R Dronamraju (includes correspondence re Haldane Memorial Volume); Dr F W Dry; Lorna C Dryburgh