President's Address. 25 



survey of the Lothians, and assisted him in his essay* on 

 those counties. He also visited the fossiliferous localities of 

 Lanarkshire, and accompanied Messrs Henderson and Brown 

 in some of their excursions amongst the Pentland Hills. 



We have seen the examination of the Edinburgh neigh- 

 bourhood, concluded about 18G0, and the memoir witli lists 

 of fossils published in 1861. The services of ^Ir E. Gibbs, 

 the collector to the English Survey, were next employed at 

 Girvan, where he worked during the years 1864-65. A large 

 number of fossils were acquired during the visit, which were 

 examined and determined in London by Mr E. Etheridge, 

 F.E.S., assisted by Dr John Young, now Professor of Geology 

 and Natural History in the University of Glasgow. No 

 detailed account of these fossils has ever appeared, but several 

 short lists have been published in a desultory manner in the 

 " Survey Explanations of Maps," the chief of these being 

 Explanation 7,i* with list of fossils from Aldons and Ard- 

 millan Brae; Explanation 14, | containing the fossils of the 

 Craigliead limestone, Drummuck burn beds, and Kirkhill ; 

 and Explanation 3,§ with a general list from the whole of 

 the localities visited both by Mr Gibbs, and afterwards by 

 Mr Arthur INlacconochie. The collections thus obtained are 

 deposited in the Museum of Practical Geology, London, and 

 the Geological Survey Office in Edinburgh. 



The official collections, however, sink into insignificance 

 when compared with those amassed during a series of years by 

 Mr and Mrs Eobert Gray. Mrs Gray began collecting around 

 Girvan after the death of Alexander ^Iaccallum,but quite inde- 

 pendently of any knowledge of his localities. Both Mr and Mrs 

 Gray visited Penkill Glen in 1855, but were not successful 

 in finding much ; but in the summer of 1859 a fresh local- 

 ity was discovered and assiduously worked at for six months. 

 For several years in succession, after 1859, these diligent re- 

 searches were continued with the assistance of the late Mr 

 Thomas Anderson, and they have been carried on uninter- 

 ruptedly ever since. Words of mine will not convey the dili- 

 gence, earnestness, and acumen displayed by Mr and Mrs Gray 



* "The Geology of tlie Lothians" (Mem, Wernerian Nat. Hist. Soc). 

 t 1869, pp. 9, 10. t Ibid. § 1877, pp. 29-34. 



