DEPOSITED IN WATER. 39 
Having thus obtained from numerous local sections a clear and 
certain general standard of the whole Yoredale series, and verified it 
by a rigorous comparison with the equally complete section of Wharn- 
side, it remains to trace the variations to which this interesting group 
of rocks is liable in its extension to the east and west in Wensleydale, 
and to the north and south of the valley. 
West of Hawes . — In passing westward from Hawes to Dentdale, 
there is little variation of the terms of the \ oredale series, except that 
flao-stone is dug, not only between the underset and Simonside lime- 
stones, but also (at Stonehouse in Dentdale,) below the Hardrow lime- 
stone. In other respects and viewed generally, the slopes of Widdale 
fell and Snays fell, on each side of the Widdale beck, give the same 
section as Bear’s Head or Weather fell, and differ in no sensible de- 
cree from that of Wharnside. 
Neither is any great variation perceived in passing by the lower 
summit of drainage from Wensleydale to Garsdale. The ascent from 
Hawes leads successively over the Hardrow, Simonside, and middle 
limestone, and the same are found in descending Garsdale. At the 
summit of drainage, indeed, a coal seam has been worked above the 
middle limestone, and this is the only circumstance in which the valley 
of H el beck Lund differs from the standard type of Wensleydale. The 
same double line of the upper limestone scars, a similar succession of 
flagstones and plates, are seen on the sides of Swarth fell and Cotter 
fell. But in Bar fell, for its whole length against Garsdale, there is 
a difficulty in tracing more than one of the upper limestones, and this, 
which produces the celebrated crinoidal marble of Garsdale, seems 
about thirty feet thick, being covered above by the grit and coal series 
of Penyghent. The middle limestone, and subjacent sandstone, and 
perhaps some of the lower Yoredale limestones, are seen in several parts 
of the stream ; flagstones, having the surfaces covered by carbonaceous 
matter, and marked by vermicular and phytoid (jointed) ramifications, are 
dug in llysel, — -only one limestone being traced above them. These 
correspond to the flagstone quarries in Helbeck Lund, at the head of 
