29 



and Stacey Wilson regarded as Cambrian, and as conformably 

 underlying beds of known Middle and Upper Cambrian ages. 



6. Other Birmingham Work. 



In addition, a number of other areas were mapped, generally 

 in company with advanced students. The following may be 

 mentioned: Dudley Castle Hill, the Wren's Nest, Rowley, 

 Lilleshall, the Clent Hills. 



Lap worth's first connected account of the geology of the 

 Birmingham District (in his interpretation rather a wide area) 

 was contained in the ' Handbook of Birmingham ' prepared for 

 the visit of the British Association in 1886 fifty-three pages with 

 a bibliography and map.* This was followed by the paper already 

 referred to (55), published by the Geologists' Association in 1898, 

 which was re-issued as a pamphlet for the use of students in his 

 department. fHis last account of the district, practically a third 

 edition, was prepared for the British Association Handbook, 

 Birmingham, 1913 sixty-three pages, with a further bibliography, 

 and physiographic and geological maps on the half-inch scale. 



Little was separately published as to research upon the Upper 

 Palaeozoic and Mezosoic rocks, and readers may find it difficult 

 to make out from Lapworth's local publications how much is 

 original work. He was specially interested in the Carboniferous 

 rocks, both at the surface and below the Permian and Trias, in 

 the Permian and its breccias, which he regarded as screes, and in 

 the very varied development of the Trias as shown at the surface 

 and in borings. He was keenly alive to the value of all evidence 

 as to the local origin of Bunter materials, and to the importance 

 of any light on the physical conditions under which these and 

 related rocks were formed. 



His knowledge of glacial matters, local and otherwise, is shown 

 by his exhaustive review of Crosskey's work,J as well as by his 

 own observations made at Birmingham, Wolverhampton, and Church 

 Stretton. Some of his views on local physiography and river 

 development will be gathered from his general treatment of the 

 drainage problems of the ' Black Country ' ; while his interesting 

 suggestions on the origin of the present course of the Severn will be 

 found in the Proceedings of the Geologists' Association. || 



We now pass to two sequels to the stratigraphical work, one 

 connected with the organisms in which he was chiefly interested, 

 the other with the larger question of the life history of the Earth 

 itself. 



* 37, 55- t 68. 



t 52. 68, pp. 606, 609. || 55, P- 425. 



