C Dickson (Oatlands, NSW) to Gould (Hobart) that Dickson's dog has taken specimens, 1839-08-15 Unit ID: 1 Date: 1839-08-15
C Empson to ? re specimens of Duckbilled platypus lent to him by Sir William Cockburn, 1856-12-16 Unit ID: 1 Date: 1856-12-16