72 



scratches, it is at once seen that these latter, taken with the direction of 

 boulder distribution, clearly point to the old glaciers of the valleys 

 draining northwards, having flowed to the north and north-west, and to 

 their having stranded fragments of the Volcanic rocks on the flanks of the 

 Skiddaw Slate Mountains. 



If the small glacial model in the Museum* be examined, the follow- 

 ing details of distribution will be further seen. The boulders of the 

 Ennerdale and Buttermere syenitic rock have been carried down the 

 Lorton Vale in great abundance and over the low fells between Lowes_ 

 water and Lorton. Boulders of the Armboth Dyke may be traced down 

 the Thirlmere, Naddle, and St. John's Vales, and then mainly to the west 

 towards Bassenthwaite, but none have beeii found on the west side of the 

 Keswick Vale or Bassenthwaite ; they occur here and there nearly to 

 the summit of Bleaberry Fell (at 1800 feet), and upon the top of Latrigg 

 (1200 feet). 



Boulders of the St. John's Quartz Felsite, situated on either side of 

 the end of St. John's Vale, have been transported eastwards towards 

 Mell Fell and Berrier in abundance, and westwards towards Bassen- 

 thwaite in smaller quantities, keeping on the north side of the valley. 



Then, among rocks of the Skiddaw Slate area, we may note a stream 

 of boulders proceeding from the Sinen Gill granite and surrounding 

 metamorphic rocks, and passing down the Glenderaterra Valley (between 

 Skiddaw and Blencathra) and then principally westwards, granite and 

 spotted schist boulders being both found on the top and back of 

 Latrigg and far down towards Bassenthwaite. 



An interesting case of abnormal dispersion is that of boulders of the 

 Sale Fell Minette (above and north of Wythop Vale) carried souihiuards 

 across Wythop Moss on to the flanks of Kirk and Broom Fells. 



2. BOULDERS REMARKABLE AS TO SIZE. 



Two of the most note-worthy boulders, as to size, in the immediate 

 district, are those of Volcanic Breccia and Conglomerate which we 

 yesterday visited upon the flanks of Dodd, Skiddaw. Their dimensions 

 * Keswick Museum of Local Natural History. 



