BINNY CRAIG-WEST CRAIG. Ill 



To the west of the house of East Binny, the picturesque 

 rock of Binny Craig rises, presenting on this side a gentle 

 acclivity, while its western side forms an almost mural 

 front. It is connected with strata of slate clay, but exhibits 

 no remarkable appearances. Near the inn of West Craigs 

 several interesting phenomena were once exposed at the 

 junction of greenstone with a bed of coal, which was com- 

 pletely changed into glance-coal ;* at present however, the 

 quarry where this appearance was observable is completely 

 covered up, so that not even a specimen of the coal can be 

 found to indicate its existence. 



At Magdalenes, where the Union Canal crosses the road 

 near Linlithgow, an earthy tufaceous greenstone occurs, 

 containing numerous imbedded nodules of splendent glance- 

 coal ; it is frequently associated with calcareous spar, and 

 in some instances, when the coal is less highly crystallized, 

 a ligneous structure may be detected. 



In addition to the points in Linlithgow which we have 

 detailed, there does not appear another worthy of minute 

 investigation. t 



We shall now notice the matters which form an envelope 

 of varying thickness to those ignigenous and aqueous mssses, 

 the mutual relations of which we have just detailed. In 



* This glance-coal was particularly examined and described to the 

 Wernerian Society by Professor Jameson many years ago. 



■f- The chemical composition of the rocks of the Lothians has been very 

 partially examined ; details connected with this department of science are, 

 however, highly interesting, and when rock masses have become more ge- 

 nerally analysed, results will, in all probability, be obtained which will bear 

 on some of the more speculative parts of geology. The mineralogical 

 and structural changes which the several stratified and unstratified rocks 

 exhibit when in contact, are now investigated and generally understood, 

 but to such junctions chemical analysis has, with few exceptions, been 

 applied. We quote the following analysis of rocks of the coal formation 

 from the 29th volume of the Edinburgh New Philosophical Journal. 

 The rocks were selected bv Professor Jameson, and the analysis entrusted 



