50 Eminent Living Geologists : Br. A. R. C. Sehvyn. 



Of this excellent body of geological woi'kers only Sir Joseph. 

 Hooker, W. T. Aveline, and A. E. C. Selwyn remain to us ; the 

 others have all gone over to the majority. This is also true of 

 Oldham, J. Phillips, Murchison, J. W. Salter, J. Beete Jukes, and 

 some others who joined the Survey before Selwyn's retirement. 

 Of the older members vpho joined afterwards, E. Hull, H. H. 

 Howell, G. H. Kinahan, and Eobert Etheridge still survive. 



In November, 184:0, we find Selwyn located at Machynlleth, and 

 accompanying Ramsay in making some traverses into the rugged 

 country of Cader Idris, from which in subsequent years they were 

 to work out the complicated volcanic geology of North Wales. 



In May and June, 1846, Selwyn was at work from Dolgelly, and 

 Aveline was tracing the boundaries of the Silurian series from 

 Llanbrynmair eastwards to Church Stretton and the Longmynd. 

 Eamsay spent much time with Selwyn, and records " glorious days 

 and glorious scenery " ; " out with Selwyn along the front of the 

 Cader cliifs," and " over the top of Cader Idris ; a long day's work 

 and a splendid scramble." He also adds, " Selwyn's work good." 



In August, 1847, we find Selwyn located at Ffestiniog, where he 

 was joined by Eamsay, Playfair, Jukes, and Gibbs ; Eamsay 

 (having accidentally sprained his ankle) was mounted on a pony 

 and went over the ground with his colleagues, and discussed with 

 them some of the problems met with in the course of their mapping. 



In the Autumn of that year Selwyn was at Capel Curig, and 

 Jukes at Yspytty Evan. Before the end of the year Jukes was 

 transferred to the South Staffordshire Coalfield. Writing to Eamsay 

 (Oct. 15, 1847) Jukes says: "It so happens that the last time I saw 

 Selwyn, we were mutually wishing that you would send us both 

 into Staffordshire together." ^ This proposal was not, however, 

 adopted. After leaving North Wales, Selwyn carried on the 

 Geological Survey work in parts of Shropshire, as far north as 

 the Liassic outlier of Frees. To show that a kindred spirit moved 

 the two young geologists, we find them in 1848 communicating 

 a joint paper to the London Geological Society on their North 

 Wales investigations.* 



Whilst quartered at Fort Madoc and Dolgelly in June, 1848, 

 SelWyn was once more visited by Eamsay, and together they went 

 forth again to the hills south-west of Craig-y-Cae, " mapping in 

 some faults and a lot of strange dykes and spots of squirted traps." 

 Eamsay writes: " Selwyn and I separated and took different ground, 

 and often met again to compare and compile. A lovely day, and 

 the (cloud) effects over the valley of Dolgellaw and the towering 

 range of Cader Idris most strange and glorious." 



In October, when Selwyn was at Beddgelert, mapping the 

 Snowdon area, we find him visited by Eamsay, who was quartered 

 at Llanberis. Eamsay writes : " Started for the hills at the top of 



1 See Letters, etc., of J. B. Jukes, 1871, pp. 302, 314, 322, and 341. 



2 A E. C. Selwyn & J. B. Jukes, " Sketch of the Structure of the Countrj' 

 extending from Cader Idris to Moel Siabod, North "Wales " : Quart. Journ. Geol. Soc, 

 vol. iv (1848), pp. 300-302. 



