ase. - Harker: Chemical Notes on Lake District Rocks. 
College, Manchester, under Dr. Harden; (77) and (78) at the 
- Yorkshire College of Science, under Dr. Cohen 
_ (61). 73°573- Eskdale granite, S. of Great How. 
(62). 75°223. Skiddaw granite, White Gill. A specimen from 
near here gave sp.gr. 2°624.. 
(63). 77°26. Skiddaw granite, bed of Caldew, 300 yards above 
Grainsgill; sp.gr. 2°604. 
(64). 78°13. Greisen, near foot of Brandy Gill; sp.gr. 2°646 
(65) Greisen, Combe Height, 250 yards S. of Grainsgill; 
sp.gr. 2° 
Shap granite, ‘epi gr. 2°687. 
Shap granite, bulk analysis. 
Large porphyritic felspars of the same. 
Ground-mass of the same. 
Dark patch in Shap granite; sp.gr. 2°769. 
. Buttermere granophyre, Scale Force. 
. Carrock Fell granophyre, summit of Carrock Fell. 
A specimen from here gave sp.gr. 2°657. 
Carrock Fell granophyre, 100 yards E. of summit; 
sp-gr. 2°670. 
Plagioclase felspar of the same; calculated from 
analysis (65). 
Augite of the same; calculated from (65). 
Carrock Fell granophyre, below Scurth and 500 
yards W.N.W. of Stone Ends; sp.gr. 2°607. 
Carrock Fell granophyre, in peat-moss S. of 
Drygill Head; sp.gr. 2°530. 
Carrock Fell granophyre, close te gabbro and 
modified by gabbro material, Furthergill Sike ; 
sp.gr. 2°805. 
(79). 58°26. Another specimen of thes 
(80). 67°180. St. John’s quartz-felsite Gallees oaisieet Threlkeld. 
A specimen from here gave sp.gr. 2°63. 
: By a loosely-worded sentence in the Survey Memoir this last 
‘analysis (80) is attached to the Armboth and Helvellyn dykes, 
_and some confusion has arisen in consequence (e.g., in Teall’s 
‘British Petrography,’ p. 343). The rock analysed was from 
_ Threlkeld, as I have verified from Ward’s original specimen in 
the Keswick Museum. 
Of the basic intrusions Ward gave an analysis by Hughes 
_ of the Carrock Fell gabbro only (loc. cit. p. 24). A silica- 
percentage of this rock was sent me by the late Mr. Tate, but 
the want of a precise locality makes this of little value, for 
. " Naturalist, 
