In some unknown way this letter fell into the hands of George Grey, see letter from George Grey, 10 May 1846. Since letters took about seven months to travel between England and New Zealand (see letter from George Grey, 10 May 1846, received by CD on 3 November 1846), it seems probable that this letter was written late in 1845.

Stokes had asked CD to read some of the proof-sheets of his account of the Beagle survey of the north-west coast of Australia (Stokes 1846). These included passages that contradicted remarks in Grey 1841 (see letter to J. L. Stokes, 3 November 1846). Stokes differed from Grey on the height of land observed from Discovery Bay and on the course of the Glen Elg River (Stokes 1846, 1: 201-3). See also Wickham 1838, pp. 464–5. Ironically, Stokes was mistaken in believing that the Glen Elg flanked Collier Bay and emptied into mangrove swamps bordering Stokes Bay on King Sound, while Grey was more correct in thinking that the river emptied ‘somewhere between Camden Sound and Collier’s Bay’ (Grey 1841, 1: 271). In fact, the river empties into Collier Bay at the head of Doubtful Bay.

Grey 1841 is the account of an attempt to explore the interior of Australia.