452 J. D. Dana on the Quartzite, Limestone, etc., 
The following section of Monument Mountain (fig. 2) rep* 
resents the stratification along a line half a mile north of that 
of the first (fig. 1). 
Bo ym sn eS Slstor ty "805 * es ao abe 
Se see 8 g 
Section across Housatonic Valley and Monument Mountain. 
On the west, it passes the Housatonic river, near an old dis- 
mantled iron furnace, (/, on map), about three-fourths of a mile 
north of Housatonic village. On the eas?, it comes out in front 
VS 
¢g si 
falls gradually in height, be gree with the southeasterly 
dip of the strata. The schist of the interior of the mountain 
here passes through to the east face, beneath the bed o 
quartzite is just above the level of the hard bedless qanreee 
and about a hundred yards to the east of it, at a point meee 
ff of 
the bluff. It lies conformably beneath the schist ; the dip st 
the quartzite is 15° to.20°, the strike N. 25° E., and the dip ° 
the schist above and a little farther east 25°, with the same 
strike. The depression on the east side of the hard weste™ 
os 
petit the ees becomes a mere path (at | 
right of the path, a little distance from it. 
