14 SOILS AND SPECIES. 
on beth sides of the Derwent Valley, but gradually narrowing to 
Little Eaton, a few miles north of Derby. South of the Trent 
the grit crops up in a small area about Stanton and Melbourne, 
between Ticknall and Repton Rocks, and around Calke. For 
convenience sake the grit surface is divided into two by a line 
from Ringinglow down the old road, passing south of Hather- 
sage, and thence direct to Brough, where it joins the lhmestone 
boundary. The district north of this is designated Gl, that 
south, as far as Little Eaton, G2. The northern division, it 
must be admitted, includes a considerable extent of other forma- 
tions than grit, viz., the Yoredale rocks already mentioned, which 
surround the central grit, and also occupy a triangular area 
south of Buxton from east of Axe Edge to near Glutton; and 
a stretch of lower coal measures reaching from Fernilee to the 
north boundary of the County, which enclose a small extent of 
grit between New Mills and Mellor. 
The southern division, too, contains other formations in the 
shape of the Yoredale rocks above mentioned between the grit 
and the limestone on the west, and further south between 
Wirksworth and Little Eaton, and the two small outliers of lime- 
stone at Ashover and Crich, the former surrounded by a small 
area of Yoredale rocks. A list of plants characteristic of the grit 
is here appended, those peculiar to it being marked with an 
asterisk : — 
Ranunculus Lenormandi Schultz. 
Genista anglica L. 
*Rubus chamemorus L. 
Potentilla comarum Vesti. 
Drosera rotundifolia L. 
*Vaccinium Vitis-idea L. 
*V. oxycoccos L. 
* Arctostaphylos uva-ursi Spreng. 
*Andromeda polifolia ZL. 
Myosotis repens D. Don. 
Empetrum nigrum L. 
