CENTRAL COAL-FIELDS. 
55 
, Shelf VIII. 
Dudley —continued :— 
696 & 697. ‘‘ Grains Ironstone.” 
698. “ Guhbin Ironstone ” (the 
Gubbin). 
699. ‘‘ Gubbin Ironstone ” (Can¬ 
nock). 
700. “ Gubbin Ironstone ” (Rub¬ 
ble). 
701. Gubbin Ironstone ” 
(Brownstone). 
Shelf IX. 
Dudley —continued :— 
702 & 703. “ White Ironstone 
Binds.” 
704 & 705. “ White Ironstone.” 
706 & 707. “ White Ironstone.” 
Brockmoor. 
708 & 708a. ‘-Cone-in-cone” (fer¬ 
riferous shale, not used as an ore 
of iron, but in making cement), 
occurring in the “ White Stone ” or 
“ New Mine,” which lies below the 
“ ten yard coal.” 
West Bromwich, Staffordshire. 
Presented by J. S. Davies 
AVall-case 55. 
Shelf I. 
709 to 712. “Cakes” or “Blue 
Stones.” 
Dudley. 
713 to 715. “ Fire clay balls.” 
Dudley. 
South Staffordshire.— TVolver- 
hampton District. 
Shelf II. 
716. Argillaceous Ironstone, 
with Blende crystallized in the 
cracks. 
Wolverhampton, 1839. 
717. Bed called “Blackband,” a 
very dark clay stone. 
Wolverhampton, 1839. 
718 & 719. “Poor Robins.” 
Bunker's Hill, 
720. “ Fire clay balls.” 
Wolverhampton, 1839. 
721. “Rough Hill White” (top 
measure). 
Darlaston. 
Shelf III. 
722. “ Gubbin and Balls.” 
Bunker's Hill. 
723. “ The Gubbin.” 
Wolverhampton, 1839. 
724. “ Ball of Gubbin Ironstone.” 
Bunker's Hill. 
725. “ White Stone.” 
Wolverhampton, 1839. 
726. “ Blue Flats ” (top mea¬ 
sure). 
Bunker's Hill. 
727. “ Blue Flats ” (chance 
stone). 
Bunker's Hill. 
728. “Blue Flats,” containmg 
numerous fossil shells. 
Wolverhampton, 1839. 
729 & 730. “Bristol diamonds.” 
Darlaston. 
Bentley and Birch Hills District. 
Shelf IV. 
731 & 732. “ Bro’v\m Stone.” 
Bloxwich. 
This is the only measure of Blackband 
in the South Staffordshire coal-field. 
The other measures of this district do 
not vary greatly from those of AYolver- 
hampton. 
"Warwickshire. 
732 a. Argillaceous Iron¬ 
stone, found in nodules from 1 lb. 
to 10 cwt., 10 feet below the coal. 
Wyken Colliery. 
732 b. Argillaceous Iron¬ 
stone. Seam about 6 inches thick, 
10 feet below the coal. 
Wykeyi Colliery. 
