South Australian Department of Mines to Royal School of Mines, 1886-03-16 Unit ID: ff.16-17 Date: 1886-03-16
S. Walcott (Colonial Land and Emigration Office) to De La Beche, 1852-10-05 Unit ID: ff.164-72 Date: 1852-10-05
S. Walcott (Colonial Land and Emigration Office) to Sir Roderick Murchison, 1855-05-18 Unit ID: ff.189-90 Date: 1855-05-18