TY  - JOUR
T1  - On the Nature and Origin of the Beds of Chert in the Upper Carboniferous Limestones of Ireland. With "Chemical Notes." 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 26
SP  - 163
EP  - 164
PY  - 1877/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1877.0026
M3  - doi:10.1098/rspl.1877.0026
AU  - Hull, E.
AU  - Hardman, E.
ER  -