FURTHER STUDIES ON THE SOILS OF 

 NORTH WALES. 



By gilbert WOODING ROBINSON, M.A. 



Adviser in Agricultural Chemistry, 



AND CHARLES FREDERICK HILL, B.Sc. 

 Former Research Student, Universilij College of North Wales, Bangor. 



In a former paper, one of us has discussed the Palaeozoic soils of North 

 Wales^. In that paper, the Carboniferous soils were omitted as being 

 rather apart from the other Palseozoic soils, which formed a convenient 

 group for study by themselves. In the present paper, the authors^ 

 discuss Carboniferous soils and the soils derived from the Northern 

 Drift, together with the associated deposits of more recent origin. 



Referring to the orographical map, it may be stated that the soils 

 examined in the present paper occur west of AB and north of CDEFGH. 

 They are thus complementary to the soils described in the previous 

 paper. The region in question comprises weat Carnarvonshire, portions 

 of eastern Anglesey, the coastal districts of east Carnarvonshire and 

 Denbighshire, the Vale of Clwyd, most of Flintshire and the eastern 

 fringe of Denbighshire. 



The physical features and climate have already been described 

 and are sufficiently obvious from the accompanying orographical and 

 rainfall^ maps. The soils of the present paper are generally lowland 

 soils under rainfalls which, for North Wales, must be reckoned as fairly 

 low. Although the district is mainly lowland, it is, as a rule, undulating, 

 with the exception of the broad Vale of Clwyd, the east of Flintshire 

 and the coastal fringe. The climate of west Carnarvonshire is consider- 

 ably wetter than that of the eastern regions. The winters are also milder 

 and the summers cooler, so that while the climatic conditions of the 



1 "Studies on the Palaeozoic Soils of North Wales," by Gilbert Wooding Robinson. 

 This Journal, 8, Part m, June, 1917. 



- Flintsliire, C. F. Hill; Anglesey, Carnarvonshire and Denbighshire, G. W. Robinson. 



' The rainfall map given in the previous paper contained certain inaccuracies which 

 have now been rectihed. 



