SCIENTIFIC RESULTS 



fied on Ferrar's map as dolerite and Beacon sandstone; 

 but on December 22 I climbed down the ice-cliff, crossed 

 the frozen stream separating me from the exposure, 

 climbed up the talus scree and collected from the lower 

 yellow band of the Northern Solitary and found the rock 

 to be a granite similar to that of the Kukri Hills. 



There were numerous specimens of the dark porphyry 

 in the scree, but I saw none in situ, I also picked up 

 several pieces of a dark fine-grained basaltic rock in the 

 moraines, a fact which points to the occurrence of basalts 

 among the volcanic rocks of the upper regions of the 

 glacier. The large height at which these last ice-worn 

 specimens were found indicates to some extent what 

 shrinking there has been in the amount of ice overflowing 

 through this great glacier. It was at this exposure that 

 I observed many great blocks that had evidently fallen 

 from the upper yellow band, and as these proved to be a 

 granite differing from that of the lower band only in 

 being of somewhat finer and more compact texture, I 

 decided to ask Armytage to allow me to prolong my stay 

 on this side of the glacier for a few hours longer in order 

 to collect if possible from this upper band itself. In this 

 attempt I was partially thwarted as I was unable to find 

 any accessible place where the scree reached right to the 

 upper band, but fortunately I was able at one other place 

 to collect from some blocks of the rock which had fallen 

 on the top of a scree sufficiently high to cover up the lower 

 granite completely and also half the dolerite band above 

 it. I have not the slightest hesitation, therefore, in map- 

 ping both the light bands of the Solitary Rocks as granite. 



Specimens were also collected from the lower dolerite 

 band, but the upper one proved inaccessible. 



After leaving these rocks we decided to make a day's 

 march round by the islands mapped at their south-eastern 

 extremity, and from there to the bluff end of the Kukri 



Vol. XI.-22 



