E F 
^Il(lTO.MICK()(;KAl•I[^^ OF U(»(■K^, OF I N <; LKTON I.\ N SEKIKS. 
All tijiuios niagi!itii.'il 13 diaiiietei s. 
C. A fragment of metaiiioipl-.ir i uait/ilf. slKiwiiiu straiu-^liaildws ami .siiluio-jdiiitiii.u. Cmssed 
nicols. 
I). A fragiueiit of well-foliated (luartz-schist . (luait/.ite. striated felspar. iV:e. Crossed iiieols. 
Pebldes of i|uarlz. quartzite, schist. iVc. Crossed iiicols. 
F. Ne.ir the eeiitre is a ehip of ,maiioi)hyre : the other frauineiils are of higidy inetauiorphi*- 
rocks. 
Pror. Yorks. (hoi. Sc:. IV. XVI., P/afr IX, 
