GLACIAL SUCCESSION IN CENTRAL LUNENBURG—PREST. 1638 
2nd. In spite of its extreme hardness, it has been denuded 
to a greater extent than any other such wide-spread deposit in 
the region under consideration. The only places where it can 
now be seen being along the valley of the Lahave, and along 
the watershed to the east. 
3rd. Since its deposition over highland and lowland alike, 
and in the pre-glacial valley of the Lahave, that river has been 
re-excavated and the conglomerate left only in a few isolated 
patches along its banks. And this has taken place before the 
depositions of lowest kames and boulder clay. 
4th. It debris has been formed into kames which are in 
turn older than the boulder clay that covers them. 
5th. It is more intensely oxidized than any other deposit 
in the southwestern counties ; so much so, that some parts of it 
constitute almost pure bog iron ore. In no more striking 
manner can its immense relative antiquity be illustrated than by 
comparing its highly oxidized condition with that of the over- 
lying till. While the later boulder clay is oxidized only a few 
feet in depth, this earher deposit is oxidized and cemented 
throughout a depth of at least 20 feet. Even beneath the 
Rhodenizer Lake kame it is just as highly oxidized as elsewhere, 
although over 30 feet, and formerly 60 feet, of stratified beds 
covered it. 
Eatent.—It seems to have formerly masked a large part of 
the province, since it is found at widely separated points, as 
Bridgewater ; Greenfield, Queens County ; Maitland, Lunenburg 
County ; and the Grove, Richmond, which is within the limits 
of the City of Halifax. The depth to which it covered the 
country was no doubt considerable, as it is found in the Lahave 
valley from the sea level to 200 feet above it. 
Origin.—That this deposit is not pre-glacial or inter-glacial, 
its unstratified condition decides. That it is‘glacial the presence 
of striated boulders testifies with no little weight. That it is of 
northern origin is proved by the contents, which consist of slate 
from near by, quartzite from the north-west, granite from the 
