118 REPORTS ON THE STATE OF SCIENCE. — 1915. 



were opened out in tLe subsidiary area called the Cwms (about two miles 

 south-west of Comley itself) with funds from another source, and a sum- 

 mary of the results appeared in the Keport of the Birmingham Meeting.^ 

 Additional work has now been done at these sections with the help 

 of the grant made in 1913, and full details are incorporated in the present 

 Eeport. 



A. Excavations in the Cwms. 

 Excavation No. 53. — The Road Quarry. 



This little quarry had been cleared of debris and was subsequently deepened at 

 certain points. The complete section thus exposed was as follows in descending 

 order : — 



North-East End of the Section. 



d. ' The Greenish-grey Sandstone.' ft. in. 



di. Hard quartzose sandstone 16 



dj. Do., do., with large ovoid and elongate cavities and masses of rotten- 

 stone up to 10 cm. in diameter ; these are almost certainly of organic 

 origin, but their nature has not as yet been determined ... 1 3 

 Hyolithellus sp. 



Hyolithus cf. H. primcevus, Groom, 

 Oholdla ? groomii, Matlej', 

 Micromitra spp., 

 and another brachiopod allied to both Miclcwitzia and Kutorgina. 



d.2. Hard quartzose sandstone 3 



d,. Well-bedded sandstones, rather soft and less quartzose than d., . 15 

 c. Shale with thin bands of quartzite 2 



Fatdt. 

 b. ' The Mottled Beds ' (about 4 feet seen). 



63. Conglomeratic quartz grit, with well-rounded grains and pebbles 

 of quartz, a small amount of glauconite, and a few pebbles of felsitic 



rocks 14 



62. Yellowish quartz sandstone, mottled with brown streaks and patches 



of dark rotten-stone and having a thin layer of quartzite at the base 1 

 6,. Conglomerate with many sub-angular pebbles of mudstone, pink 

 and buff-coloured felsitic rocks, and brown quartzite; also con- 

 taining rounded or elongate masses of rotten-stone, suggestive of 



the former presence of calcareous organism.s 14 



Fossils from the two beds 6, and 63. 

 Hyolithdlus, sp. 

 Hyolithus sp. 

 Obolella groomii, Matley. 

 Micromitra spp., 



and two other brachiopods, allied to both Miclcwitzia and Kvlorgina. 

 a. ' Wrekin Quartzite,' about 16 feet seen. 



«8. Yellowish quartzose sandstone, nearly a quartzite .... 1 6 

 a,. Pale blue compact quartzite, with occasional pink grains of felsite 2 - 

 ttg. Yellowish quartzite, with well-marked compact blue and impure 



yellow bands 2 



a^. Impure yellowish quartzite, much fractured 8 



04. Compact blue quartzite 8 



a,. Compact blue quartzite 10 



O2. Mottled blue and yellow compact quartzite 4 



a,. Compact quartzite, bedding disturbed 4 



Broken blocks of quartzite, occupying a distance equivalent to a further 



thickness of about 6 



Probable Fault. 



South-West End of the Section. 



The dip of the beds throughout remains fairly constant at about 80° N., 70° E. 



' Rep. Brit. Assoc. 1913, Birmingham (1914), p. 486. 



