484 Dr. H. Woodward — New Carboniferous Trilohites, 



strata are so contorted that it is difficult, or impossible, to measure 

 them accurately. Above are the grits and sandstones of Longrid^e 

 Fell. The dip of the strata is here 20° W., but hardly 100 yards of 

 the river-bank can be found without irregularities, faults, or curves 

 in the beds. 



" At the bathing-cots the limestone predominates, but very few- 

 fossils have been found in it, with the exception of the coral 

 Lonsdaleia ; but a little lower down the river the shales occur in 

 thicker beds, and in several places, at least, are rich in fossils. The 

 section is drawn from the highest of these broad bands of shale, 

 where there is a cutting about 15 feet vertical, perpendicular to the 



Section, about 15 feet in vertical height, not far below the Bathing-cots, on the 



Eiver Hodder, Stonyhurst. 

 Eeduced from a drawing to scale, by Wm. van "Waterschoot van der Gracht, Esq. 



a 1 a. Limestone forming roof of section, about 9 feet in thickness here ; ff, g. 

 lenticular masses of chert forming irregular bands or nodules in the limestone ; 

 h, b. dark carbonaceous finely laminated shales (varying in thickness) separated 

 by a, a, bands of limestone of variable thickness, some only a few inches ; 



d, d. shales with Trilobites, etc., subdivided by c, c. thin seams of mixed limestone 

 and clay in rectangular blocks ; /, /. shales with " Palceocoryne,''^ etc., separated by 



e. band of limestone, imder which specimens of '* Palceocoryne'''' were found. 



Almost all the fossils enumerated were found in the upper thick band of shale b, 

 under the beds 1, a, g. 



It is estimated that the total thickness of beds observed here along the Eiver 

 Hodder exceeds 500 feet. Above are grits and fine sandstones (Longridge Fell). 



