122 GEOLOGY OF THE LOTHIANS. 



from Arniston to the neighbourhood of Tranent, and may 

 be examined in numerous openings with facility. 



At Crichton Dean, near the village of Fala, limestone 

 is extensively worked ; the same belt also crops out at the 

 village of Salton and at the farm of Jerusalem, and several 

 miles to the south a similar rock is quarried at Kidlaw, a 

 point on the immediate confines of the greywacke strata. 

 At Sunny side a farm near Traprainlaw, a considerable de- 

 posit of limestone appears connected with the red sandstone 

 series, and associated with trap rocks. Limestone again 

 occurs near Balgone, forming, in all likelihood, a portion 

 of that fetid limestone deposit which is worked at Rhodes, 

 near North Berwick. Interstratified with the white sandstone 

 which forms the coast of East Lothian from Broxburn to 

 the Cove shore, there occur several strata of mountain lime- 

 stone : the points where it is best seen are at Laurie's 

 Den, Barness Point, and a little to the south of St Dennis' 

 Chapel. To the north of the calcareous formation which 

 we have described as forming a considerable extent of 

 country, and skirting the base of the Moorfoot Hills, lime- 

 stone has been extensively worked at the village of Burdie 

 House, and can be traced to the neighbourhood of Gilmer- 

 ton, where it disappears under the white sandstone. Near 

 Tranent limestone is met with in one or two places ; and it 

 crops out also at several points on the shore between Aber- 

 lady and Red House. 



In Linlithgowshire, though the great abundance of trap 

 rocks, and the covered state of the surface, render the 

 tracing of strata a matter of no small difficulty, and in many 

 cases one of impossibility, still one band of limestone is 

 found crossing the country in a N. N. E. and S. S. W. di- 

 rection, in a well marked manner. The most southern 

 point in the county where this limestone is visible is at 



