in the Neighbourhood of Edinburgh. 243 
style in which they are written, for calling my attention to the seams of limestone at 
Moredun Mill, of the existence of which I had been previously unaware. It will be 
seen that I have not under-rated their importance. In fact, they are in correspon- 
dence with what I have since observed in several places, that more than two, or even 
three alternating beds of marine limestone occupy different places in the carboni- 
ferous system of the south of Scotland. 
SECTION IV.—THE BURDIEHOUSE SYSTEM OF STRATA. 
The system of strata connected with the limestone of Burdie- 
house, is to the east of the great fault described in the last sec- 
tion, which has brought to view deep-seated beds. 
Wea V 
TRAP OF THE 
PENTLANDS, NORTH ESK, 
AM 
Boe 
Sandstone, Shale and 
shale, and sandstone, ee ee 
avery thin with thin ri 
coal. be ae Scale of one English Mile. 
ironstone. 
qed Vv 
I may now remark, that, in reference to the section given, I 
shall point out, in their several orders, first, the strata in im- 
mediate association with the limestone of Burdiehouse; secondly, 
the description of overlying beds contained between the Burdie- 
house limestone and the limestone of Fountain-well, which is 
the name given to the site of a cluster of houses close to the 
village of Loanhead ; thirdly, the character of the Fountain-well 
limestone, which appears to differ from that of Burdiehouse, in 
containing marine remains ; and, fourthly, the rich coal-measures 
of Loanhead which take the highest place in the system. 
Hh 2 
