SOILS AND SPECIES. 19 
less than appears from the survey. In the Quarterly Journal 
of the Geological Society for February, 1889, Mr. H. T. Brown 
has shewn that the area including Knowl! Hill and Coppy Hill is 
not Permian, but consists of Lower Keuper overlying Bunter. 
He has also shewn that the Bunter extends eastwards as far as 
Ticknall Church instead of being a quarter of a mile to the west, 
as coloured in the survey. The whole of his paper is most 
interesting and instructive, as bearing on the geological features 
of this district. The Red Sandstone (Permian) is found in a 
narrow forked strip which runs up between Bretby Park and 
Repton Shrubs. The altitude of T3 ranges from 120 feet along 
the Trent to 604 feet just south of Pistern Hill. 
Appended is a list of those plants which prefer sandy habitats, 
and are chiefly found on the Bunter formation :— 
Papaver Argemone L. 
Corydalis claviculata DC. 
Senebiera coronopus Pozr. 
Lepidium campestre R. Br. 
Silene noctiflora ZL. 
Cerastium arvense L. 
Spergularia rubra Pers. (Buda Dum.) 
Silaus pratensis Besser. 
Dipsacus silvestris L. 
Filago germanica L. 
Senecio silvaticus L. 
Specularia hybrida DC. 
Anchusa arvensis Bieb. 
Plantago coronopus ZL. 
Alisma ranunculoides ZL. 
Eleocharis acicularis Sm. 
Festuca Myurus ZL. 
F. sciuroides Roth. 
Hordeum murinum JL. 
