 The Caledon River, which was in spate on Christmas Day, could only be crossed on 29 January 1841, and then only by way of dismantling all the wagons and ferrying them across piecemeal.They reached Thaba Nchu on 15 February 1841 and continued north across the Vet River Difficulties with the purchase of horses delayed their departure until mid-April.Crossing the Sand and Vals Rivers, they reached Kroonstad where they spent some days collecting and preserving birds.