450 



H. JKAY ON* THE HALESOWEN SANDSTON] 



[Oct. 19 13, 



The Wassel-Grove sinking is a mile and a quarter south of 

 Oldenhall, and stands also at 580 feet O.D. The shaft commences 

 near the summit of the Hasbury Group, and the beds pierced . 

 are : — 



Sandstone, 123 feet (Hasbury Group). 

 Blue binds, 4 feet (Halesowen Coal and Clays). 

 Sand-rock, 38 feet (Witley Group). 

 Productive Coal Measures. 



The Old-Hill 

 n Marls are not re- 



presented. Thick 

 Coal is not pre- 

 sent in workable 

 form, but certain 

 ' seven-yard 

 measures ' are 

 thought to re- 

 present it. These 

 occur at a depth 

 of 474 feet, or 106 feet 

 above sea-level. 



Witley Colliery is a mile 

 and a quarter east of Olden- 

 hall and a mile and three- 

 quarters north-east of Was- 

 sel Grove. It stands at 

 380 feet O.D., and the shaft 

 commences near the summit 

 of the Witley Group, which is 

 well developed in the vicinity. 

 Details of the upper measures 

 have not been preserved, but it 

 is probable that the full thick- 

 ness of the Witley Group (200 

 feet) is present. At 267 feet 

 water - bearing conglomerates 

 were met with ; these may re- 

 present either the Passage-Beds, 

 or the upper ' Espley Rock ' of 

 the Old-Hill Series. The latter 

 is the more probable, inasmuch 

 as these beds are usually water- 

 bearing, and are found in all the 

 local mine-sections. The Thick 

 Coal occurs at 831 feet, or 451 

 below sea - level. The 

 workings underground show that 

 the coal rises westwards and 

 south-weswards at 1 in 6 and 

 1 in 3 for a distance of half a 

 mile, and afterwards flattens . 



