Royal Physical Society. 251 



of "Leek." It is uniformly stratified, and never occurs superimposed 

 upon the Coal Measures. The alternate patches of the two rocks are sepa- 

 rated by faults filled up by wacke and fragments of sandstone. Hence it 

 would appear that the " Leek" had at one time uniformly covered the 

 sedimentary rocks ; that the mass had been broken up by faults ; and 

 then by denudation the whole of the tuffa had been removed, except such 

 portions as had sunk to a lower level. It was remarked that the sand- 

 stone presented an indurated character, even when not in the neighbour- 

 hood of the tuffa, and was entirely unaltered in one case where a mass of 

 basalt rests upon its surface. In this case the basalt is separated from 

 the sandstone by a horizontal layer of wacke, in the centre of which oc- 

 curs a mass of stratified sandstone, while the upper portion of the wacke 

 passes gradually into basalt. The harbour of Elie presents a mass of 

 sandstone completely surrounded by stratified trap tuffa, the strata of 

 both the rocks being highly inclined. On the neighbouring shore the 

 land is fast gaining upon the sea by the accumulation of blown sand. 

 Lately, at a point at least 100 yards from the high-water mark, stone cists 

 or coffins were exposed in an excavation which was made, and close to 

 them the ancient beach was disclosed in a mound of rolled pebbles some 

 ten or twelve feet high. The sand must already have begun to gather 

 before the burial took place. The author concluded by describing very 

 minutely three distinct terraces, the highest 100 feet above the present 

 sea level, which occur on the western side of Kincraig Head, and may be 

 traced to a considerable distance, and invited the Members of the Society 

 to inspect the shore for themselves, offering them every assistance in so 

 doing. 



The communication was illustrated by the Ordnance Survey Maps, and 

 a coloured geological map of the district ; numerous specimens were ex- 

 hibited in illustration of the different geological details referred to. 



II. Analysis of Three Waters from Palestine,, viz. : The Water of 

 Mar ah 9 the Hot Springs of Tiberias ; the Baths of Pharaoh, By 

 Allen Dalzell, M.D. 



The waters in question had been sent to the College Laboratory by Dr 

 Stewart of Leghorn, by whom they were brought from the Holy Land. 

 The first water Dr Dalzell wished to mention was from a spot little visited 

 by travellers, on the western side of the Sinai peninsula, and was believed 

 by Dr Stewart to be the " Marah" of Scripture. As taken from its source 

 it was found by that gentleman to be charged with sulphuretted hydrogen. 

 The Marah water, as he received it, had a specific gravity at 60° of 10085, 

 and contained 1400 grains of solid matter in the imperial gallon. The 

 following showed the nature and proportions of the constituent salts : — 



VOL. I. Y 



