| Description | Murchison correspondence: letter from Robert HARKNESS, Dumfries, 5 Dec 1850. Re: Has heard from Charles Lyell that his paper ["On the Silurian Rocks of Dumfriesshire and Kirkcudbrightshire", 'Quarterly Journal of the Geological Society', vol 7 (1851), pp46-58] will not be postponed after all; sends Murchison a graptolite from the border of Selkirkshire and asks if he could show it to Joachim Barrande as it may be connected to a sub-genus of Diprion he has described. |