760 
Proceedings of the Royal Society 
kind of rock prevailing to N. of Cuinneag is a hard blueish-grey 
quartzite (?), with a slabby structure. 
Boulders were seen in the distance, perched on the sky-line of 
ridges to the west, of from 1600 to 2000 feet above sea. 
W. Morrison, 
Secretary to Ross-shire Field Club. 
Mr. Morrison, in sending the foregoing notes, writes to the 
Convener a letter (dated 8th May 1882) from which the following 
extracts are given, as they supply information of interest : — 
“ Carn-Cuinneag, in company with Mr. MacLean, factor for 
Ardross, Dr. Sutherland, Invergordon, and Mr. Joass, Dingwall, I 
visited on Saturday last. The weather unfortunately was extremely 
unpleasant; sleet and snow with driving mists prevented more 
thorough work being done. However, we satisfied ourselves as to 
the parent source of most of the travelled boulders in Easter Ross. 
Carn-Cuinneag and its lesser neighbours, Carn-Maine and Carn-an- 
Lochan, we saw were granitic. Carn-Bhren to the N.E., the keepers 
told us, is composed of the same rock as Cuinneag. 
“ The rock of the hills to the N. in the immediate proximity of 
Cuinneag was found to be of a flaggy or slabby structure. Under 
the microscope it shows grains of quartz. The appearance of the 
rock is uncommonly like limestone, but the acid test (hydrochloric) 
decided it was not limestone. I am not enough of a geologist to 
determine what this rock is. The description given in Rutley’s 
Petrology of Quartz-Trachyte answers well to what I found the rock 
to be under the microscope. Carn-Cuinneag is a remarkable hill. 
Its two lugs (hence the Gaelic name) are pinnacles of granite ; the 
slopes descending from these peaks are covered with immense 
numbers of huge oblong blocks to within a short distance of the 
base of the hill. On the U. and W. slopes are to be seen shoots of 
stones of all sizes besides. 
u Kildermore to the S.E. is strewn over with boulders, evidently 
from the Diebidale hills. 
“ I shall report result of our investigation of the hypothetical 
belt, extending from Carn-Bhren over Carn-Cuinneag and on to 
Xnchbae, where the granite or gneiss was found in situ at Druim 
Buidhe as reported before, when we get to work. 
