FROM THE HUTTON COLLECTION. 29 



(the old walled part of this town or city stands on Boulder drift 

 clay, which has not yet heen fathomed). But there are coal-pits 

 a few miles from the city of Durham, and one at Monkwear- 

 mouth, north of Sunderland, perhaps from which the coal under- 

 neath that town is worked, and there have heen one or two pits 

 in the county of JS"ewcastle-on-Tyne ; hut the only fossil I have 

 seen during the last forty years from any of these localities was 

 one found in a sandstone quarry on the top of "Westgate Hill, part 

 of which is in this Museum; and numerous fossils were formerly 

 found in the High-Main Post at Gateshead, on the south side of 

 the Tyne. Northumberland is a very wide locality for a fossil, 

 it includes any stratum, from the top of the Coal-measures to 

 Calciferous-Sandstone inclusive. In TJnger's Synopsis and other 

 works we find Ad Yarrow; ad Bensham ad Yarrow, for the 

 shale above the Bensham coal-seam, at the Old-Colliery, Jarrow- 

 on-the-Tyne ; ad Yawdon, for Fawdon old pit, long since dis- 

 used; and such like localities for fossil plants are about as 

 intelligible as Ad Yarrow prope Bensham Anglise by the same 

 writers. "Newcastle Coal Field" is more than once used in the 

 "Fossil Flora," and sometimes even that is erroneous; but the 

 explanation of this is, I think, that the drawing had been sent 

 to Prof. Lindley without any name attached to it, and to save 

 time and postage (twice ninepence in those days) he wrote 

 "Newcastle Coal Field" at a venture. 



The following is a list of the more important works quoted in 

 the following Catalogue, with the contractions used for refer- 

 ence : — 



Schloth., Flor. d. Vorw. 

 Petref 



Sternberg, Vers 



Brongt., Class. Veg. Foss. 



-- Prod 



— Hist. Veg. Foss. 



Artis, Anted. Phyt. 



Schlotheim, Flora der Vorwelt. 1804. 



Die Petrefactenkunde. 



1820—23. 



Sternberg, Vers. Geog.Darst. 1820-38. 



Brongniart, Classification et la Dis- 

 tribution des Ve'ge'taux 

 Fossiles. 1822. 



Prodromus. 1828. 



Histoire des V^getaux 



Fossiles. 1828—37. 



Artis, Antediluvian Phytology. 1825. 



