MONOGRAPH XXIX. PL. XXVII. 



LEYDEN ARQILLITE. 



VERNON. 



v'ERNON QNEISS. 



(devonian.) 



BERNARDSTON. 



GILL. 



QUARTZITE. ■ QUARTZITE. 



LIMESTONE. MICA SCHIST 



AMPHIBOLITE.' 



BERNARDSTON 

 (DEVONIAN.) 



QUARTZITE. 



MICA SCHIST AND 

 AMPHIBOLITE. 



MONTAGUE. 



LEYDEN ARQfLLITE. 



BERNARDSTON QUARTZITE. 



D. 



MONTAGUE. 



XVI. 



iRLOAF ARKOSE 



BECKET QNEISS. 



GEOLOGICAL MAP. 



