664 



Appendix. 



666 

 667 

 668 

 669 

 670 

 671 

 672 

 673 

 674 

 675 

 676 

 677 

 678 



679, 680 

 681 



Argillo-micaceous slate, contorted with layers of quartz, Williamstown. 



do Saddle Mountain. 



Arenaceous Mica Slate, Norwich. 



do passing into gneiss, Bolton, 

 do mostly quartz, argentine locality, West Hampton. 



do 



do vescicular (see No, 598) 

 do 

 do 



Arenaceous Mica Slate. Woonsocket Falls 

 do 



do with feldspar, 

 do 



do whetstone slate, 

 do do 

 do 



do used for monuments, 

 do 



do with seams oblique to the 



surface of the layers, Deerfield. 

 do do 

 Argillo arenaceous Slate, reddish, at the junction with 



the new red sandstone, Glen, Leyden. 

 688, 689, 690, do bent 



691 Arenaceous Mica slate, 



682 

 683 

 684 

 685 



687 



Norwich. 

 Chesterfield. 

 Chester. 

 Norwich. 

 Cumberland,!^ I. 

 Chester. 

 Enfield. 

 Chester. 

 Enfield. 

 Norwich. 

 Sherburne. 

 Halifax, Vt. 

 Greenfield. 



692, 693 do anthracite locality, 



694 do with a talcose aspect, 



695, 696, 697 do 



698 do with veins of granite, 



699, 700 do mostly quartz, 



701 Talco arenaceous slate — bowlder, 



702 Arenaceous Mica Slate, 



703 do passing into clay slate, 



704 do talcose, 



705 do 



706 do mostly quartz, 



707 do 



708 do with veins of quartz, 



709 do 



710 do 



711 do 



712 do 



713 Plumbaginous Mica Slate, contorted, 



714 do 



715 do 



716 Brecciated Mica Slate, 



717 Anthracitous Mica slate, 



718 719 do anthracite locality, 



720 Plumbaginous Mica Slate, 



721 do 



722 Mica Slate, mica and quartz, laminar, 



723 do do 



724 do conglomerated passing into sienite, 



725 Indurated mica slate, 



do 



Worcester, 

 do 

 do 

 do 



Lunenburg. 



Groton. 



Worcester. 



Dracut. 



Worcester. 



Lowell. 



Methuen. 



Worcester. 



Andover Bridge. 



Worcester. 



S. Hampton, N. Hampton. 



East Sudbury. 



Webster. 



Oxford. 



Worcester. 



Ward, 



Amesbury. 



do 

 Dudley. 

 Worcester. 

 Hawley. 

 South Hampton, 

 Northfield, west of Ct. River. 

 Conway, 

 Whately. 



do 



726, 727 Augite Rock associated with mica slate, Williamsburg. 



728 Phosphate of Lime in mica slate, Norwich. 



729 Fluate of Lime, Westmoreland, N. H. 



730 White milky quartz, Warwick. 



