in the Counties of NV ew-Haven and fatchfield. 235 
2. Mica slate succeeds and occupies the country, for 
nany miles. 
3. Gneiss succeeds to the mica slate, and occupies the 
country for many miles more. 
4. Granite crowns the whole, although it occupies but a 
wet extent* compared with the gneiss and slaty rocks. 
. The relative elevation, is on the\whole in this order, 
a we find clay slate occupying the lowest and granite or 
gneiss the highest situation. 
6. Near Watertown where the granite was observed, the 
next formation, is mica slate, which occupies about fifteen 
miles in breadth to Goshen, where granite again appears. 
7. The north western corner of the State, where we have 
now arrived, presents immense ranges of gneiss and mice 
slate, with a new and very interesting feature. 
8. This feature is the existence of vast beds of white 
erystalized primitive marble, and, including the formation 
further south, between New-Preston and New-Milford— 
these beds of marble, are included in strata of mica slate 
and gneiss—the whitest and most crystaline and purest 
marble being in the gneiss. 
9. West Gibacnfeld: a few miles, (as lam informed from 
the best authority,) there are hills of primitive hornblende 
and sienite. — 
10. A little West of New-Haven, as described in Bruce’s 
Journal, (Vol. I. pa. 139,) are beds of primitive trap. 
Thus it appears that in the district described in the tour 
are included very nearly all the important primitive rocks 
of Werner, and the secondary district, on which New-Ha- 
ven stands, includes a considerable portion of his seconda- 
ry formations. 
The direction of the ranges of primitive rocks, is general- 
ly North, a little inclining to East, and of course South, a 
little inclining to West; the secbeer de of the strata, is to 
the East, at an angle, varying very much in different pla- 
Ges ihe strata are in some places, nearly vertical and uw 
others, at angles of less than 45° with the horizon. 
* Possibly it is only in veins. 
