344 MINERALOGY OP ARRAjf. 



less than 11 toises per league. But, as the whole slope Is 



not uniform, to give a more accurate idea of it, we may 



divide the 160 leagues into five unequal portions, each of 



which would have a nearly uniform slope. 



Level from 1st. From Havre to the chain that separates the waters 



Havre to falling into the two seas, taken near Dijon, a length of 



95 leagues, with 300 toises elevation above the sea, which 



would give an ascent of three toises, one foot, four inches, 



in every league. 



from Dijon to gd. From these summits to those of the lowest chain of 



the Jura, beyond Besancon, at both which places the height 



above the sea is the same, making a horizontal line of 23 



( leagues. 



From Besar^on 3d. From the highest summits near Besancon to those of 



th l j et ° P *^ e h*gh es * chain of the Jura, at Casserale, two leagues 



north of NeufchateJ, a distance of 12 leagues, with 556 



toises difference of elevation, giving 454£ toises rise in a 



league. 



From the Jura 4th. From the loftiest summits of the highest chain of 



to the first Jura to those of the lowest chain of the Alps, south-east of 



Aip Si Berne, a distance of 15 leagues, with 200 toises difference 



of tlevation, giving 13 toises two feet rise in a league. 



From the 5th. From the summits of the lowest chain of the Alps 



lowest Alps to to the highest of those of St. Gothaxd, 15 leagues distance, 



St. Gotthard. ° 7 ° ' 



and 700 toises of elevation, being a rise of 46 toises four 



feet in a league. 



VIII. 



Some Miner alogkal and Geological ©observations, made in 

 the Lie of Arran; by the Rev. James Headrick*. 



XI DVANCIN'G along the north shore of the island from 

 Loch Ransa, the first remarkable thing that occurs is at 

 Craig-na-Sronc (Nose Rock^) where the secondary strata 

 are seen resting upon the micaceous schistus. The first 



* From that Gentleman's View of the Mineralogy, Agriculture, 

 Manufactures, and Fisheries, of the Island of Arran. 



stratum 



