DISTRIBUTION. 165 
13. GENERALISED SECTION OF THE AYRSHIRE COAL-FIELD, SHOWING PosiTION OF 
Mussen Banps. 
Kindly drawn up for me by Mr. J. Sirs, of Kilwinning. 
Red sandstone 
Strata with 10 Coals, 280 feet With Anthracomya modiolaris. 
£ Coal of the Shettleston Coal- 
field 
With Carbonicola acuta and Naiadites quadrata. 
Strata with 8 Coal beds at 
400 feet 
Ironstone With Carbonicola robusta. 
, 
Bituminous shale at 408 feet With Carbonicola robusta. 
Mussel-band Ironstone at 418 
feet 
With Carbonicola robusta. 
Strata with 1 coal and 2 oil 
shales, 505 feet 
Ladyha Coal of Kilwinning With Carbonicola in roof. 
Strata with 1 Coal and 1 Iron- 
stone at 557 feet 
Ell Coal of Kilwinning With Carbonicola obtusa in the roof shale. 
Strata with 5 Coals at 623 feet 
Blackband Ironstone of Dal- 
mellington and Lugar 
Strata with 80 feet of volcanic 
rocks, 24 Coals, 3 Limestones, 
and 9 Ironstones, at 1652 feet 
Blackband Ironstone of Dalry 
With Carbonicola robusta, C. turgida, and Anthracomya minima in the 
Ironstone and shale roof. 
With Naiadites carinata and N. obesa. 
Strata with 2 Ironstones at 
1660 feet 
Strata with 1 Coal and 4 Iron- 
stones at 1730 feet 
Thick shales with 16 Ironstones 
at 1863 feet 
Strata with 7 Limestone beds 
and 1 Coal at 1927 feet 
Carbonicola acuta and Naiadites quadrata in this shale band. 
Carbonicola acuta and small Naiadites in parts. 
Shale at 1950 feet 
Volcanic series, 1000 feet thick 
With Naiadites crassa. 
Calciferous Sandstone with shale 
ral Casts of small Naiadites. 

