gi:i.<;ory.] VOLCANIC SANDSTONES AND CONGLOMERATES. 127 
FIELD DESCRIPTION. 
These rocks have been found on Welts Brook, west of Haystack; 
on the Ashland-Sheridan road south of the volcanic tuff described in 
the preceding section; in Perhani Township, outcropping in the road 
running east-west along the south side of the Little Madawaska ponds; 
in New Sweden Township, at the headwaters of and all along Bears- 
ley Brook; and on the east shore of Madawaska Lake. 
VOLCANIC CONGLOMERATE ON WELTS BROOK. 
This outcrop is in the line of the road running east-west on the north 
■side of Haystack Mountain, and forms several low ledges a short dis- 
tance east of the brook. In the field the rock appears as an indurated 
sandstone, varying in texture from very fine materials to conglomer- 
ates with fragments of slate 6 inches long. Fossils of several species 
were found here more abundantly in the coarser parts. A rude bed- 
ding is indicated by a succession of coarse and fine materials, but the 
variation is never abrupt and is rarely distinct enough to determine 
the position of the beds. The rock here is exposed for 100 feet or 
more along the bedding, and farther to the northeast similar material 
is found quite abundantly on lot 89, Castle Hill Township. 
VOLCANIC CONGLOMERATES OF ASHLAND TOWNSHIP. 
These occur in the road running northeast from Ashland and about 
2 miles from that village. In the field this particular outcrop is not 
listinguishable from the other sandstones and conglomerates of Ash- 
land and Sheridan townships. In fact, the field evidence shows that 
ill the conglomerates of this region, ranging in texture from fine grits 
:o exceedingly coarse pudding stones, are parts of one series of beds, 
aid down under different conditions. Igneous material is in them all, 
md the present example, like the volcanic tuff next to it, is separated 
from the Sheridan sandstones on the arbitrary line of relative amount 
)f volcanic debris contained. The beds are fossiliferous, and strike N. 
m° E., with dip < 40° NW. 
VOLCANIC CONGLOMERATES OF NEW SWEDEN TOWNSHIP. 
This rock is quite widely exposed about the headwaters of Bearsle}^ 
Branch of Madawaska River, and also on the north bank of the stream 
ibout the middle of the township, and, in fact, forms practically all the 
lorthwest half of the township. The best exposure is a hill on the 
vest line of New Sweden, on the south side of the little brooks which 
form the headwaters of Bearsley Branch. A continuous section is 
exposed here for about half a mile, and shows coarse conglomerates, 
andstones, and arenaceous shales in beds 1 to 35 feet thick, forming a 
eries which in position and material is practically the same as the one 
