154 



Neuropteris. 1. laevigata 



Pecopteris 1. ligata 



2. curtata 

 Cycadites. 1. latifolius 



ORGANIC REMAINS. 

 PL X. fig. 9- 



PL VIII. fig. 14. 

 PL X. fig. 7. 

 PL X. fig. 1. 



2. gramineus 



3. lanceolatus 



4. pecteno'ides (Steinberg) 



Flabellaria? viminea 



fig. 2. 

 fig. 3. 

 fig. 4. 



PL X. fig. 12. 

 fig. 5. 



Seed of a cycadites ? 



Seed vesseL 1. (Young & Bird PL I. fig. i. on the left) 



2. (Young and Bird, PL I. fig. 7.) 



3. (Young and Bird, PI. I. fig. 2.) 



Egton Moors, Haiburn 

 Wyke. 



Also in the upper carbona- 

 ceous shale. 



Egton Moors, and in the 

 upper carbonaceous shale. 



Saltwick. Its nervures are 

 very delicate. 



Saltwick. 



Saltwick, Haiburn Wyke, 

 Cleveland hills ; also at 

 Stonesfield, Oxfordshire. 



Saltwick, and in the upper 

 carbonaceous shale. 



Haiburn Wyke. 



Saltwick. 



Ditto. 



Hawsker, in sandstone. 



Of the last three specimens, which are in the museum of the 

 Whitby Literary and Philosophical Society, I transmitted drawings to 

 M. A. Brongniart, along with several other representations of species 

 contained in the above list, which were not in the museum of the York- 

 shire Philosophical Society, when he examined its contents in 1825. 



The above catalogue contains about twenty species of monocotyledo- 

 nous plants, of which seven appear to me to be identical with as many 

 which have been previously mentioned as occurring above the Bath 

 oolite. One has been found in the slaty stone at Stonesfield ; one at Brora. 

 in Sutherland ; and in several rocks probably of about the same antiquity 

 on the continent ; but none in the more ancient coal measures associated 

 with the mountain limestone, nor in the more recent lignites which 

 belong to strata above the chalk. The result of all accurate inquiries 

 into the nature and distribution of fossil plants, is, that they consist of 

 three great distinct groups of species, which occupy as many peculiar 



