HUGHES : INGLEBOROUGH. 
329 
there any sufficient proof that the material was sorted by currents 
of water. For aught we can say at present the stratification may 
have been produced by the showering down of the coarser and 
finer, of the heavier and lighter material over a land surface, or 
into the sea, where it directly settled to the bottom, beyond the 
reach of wind, waves, and tides, but no signs of ancient land 
surfaces or of marine sediment with traces of life have yet been 
detected. 
The Ingleborough district seems to have been still further from 
the region of volcanic activity. No lava flows appear to have 
reached it. There is a very large proportion of the finest material, 
and, where bands of coarser character occur, they consist of well- 
rolled sand and grit such as might be derived from a coarse 
granite, and, more rarely, some beds of breccia of doubtful origin, 
is^o signs of land surfaces, nor of the fauna or flora of a sea bottom, 
have so far been detected here, though we may hope that among 
the grit bands fossils may yet be found. On the whole it seems 
probable that we have here volcanic material transported from a 
distance, and quietly setting to the bottom of a lake or sea over 
which no coarser or heavier material than the grit of Dale 
Barn was ever strewn. We should not expect the thickness of 
beds to be as great as that which was attained by the cones 
nearer the sources of eruption, and this consideration, as well as 
observation of the nature of the folds where they can be 
detected, would support the suggestion (p. 325) that the apparent 
sequence along Chapel-le-dale is deceptive, and that the beds 
are repeated over and over again as shown in the diagram 
(Fig. 10). 
We cannot attach much importance to the absence of fossils 
in a formation which has suff*ered so much deformation as has 
this Chapel-le-dale Series of green rocks. Almost all traces of 
organic life would probably have been entirely obliterated or 
been dragged out beyond all possibility of recognition, and, if 
they are found, it will probably be where protected by some of 
the more unyielding beds or on the turn of a fold where the 
distortion was not so violent. 
