jS'EAE NE^\ GALLOWAY. 581 



DiscTTSsioJsr. 



The Chairman (Mr. Httdleston) remarked on the satisfaction he 

 felt in seeing microscopic examination of rocks taken up by ladies. 

 He noticed that there were no chemical analyses given in the paper. 



Mr. Harker had never seen gritty rocks so highly metamorphosed 

 as those laid npon the table. The mode of occurrence of nodular 

 masses of garnet and quartz struck him as interesting, and he would 

 ask whether it was concretionary or connected with folding. Highly 

 granatiferous rocks were found elsewhere, as in the Ardennes, 

 coming in in a lenticular fashion. The large quantity of mica would 

 seem to indicate an arkose rather than a grit, but he would await 

 the publication of the paper. 



Prof. Hughes thought that whatever may have been the origin 

 of the gneissic rocks exhibited they had certainly been much affected 

 by dynamical metamorphism, and that the Author had made out a 

 good case for contact-metamorphism also, though he believed she did 

 not profess to have traced the ordinary sedimentary grits continuously 

 into the highly altered rocks. 



Mr. Teall explained that though he had communicated the 

 paper, he had no special knowledge of the locality. He felt that 

 the Author was perfectly well able to examine rocks microscopically, 

 and she had also done a considerable amount of field-work. He 

 very much regretted the absence of the Author. 



