WEST TEES DISTRICT. 131 



From the summit ridge in the direction of Maize Beck the 

 descent is sudden, the distance being about a mile, and the 

 difference in elevation not less than 1200 feet. This slope is 

 crowned by a small scar of Main Limestone, and is intersected 

 by several streamlets, one of which takes its rise at the foot of 

 the scar. The rarer plants of this slope are Epilobiiwi ahini- 

 foliion, Sedum viUosu/ii, Saxifraga stellaris^Hirculus and aizoides, 

 Bryum pallescens, Tetraplodon mnioides and Hypmcm sarfiien- 

 tosum. The Maize Beck only touches Yorkshire during the 

 lower part of its course, and separates the county from West- 

 morland. Till it nears the Tees it is a mere moorland stream 

 with a rocky channel, neither so broad nor so deep but that it 

 may be crossed under ordinary circumstances by means of the 

 stones in its bed. During the lower part of its course the 

 channel is deeper and the rocks steeper, and the stream forms 

 a series of small but picturesque rapids as it leaps from ledge to 

 ledge of the Basalt. About these falls the following rarer 

 plants grow : 



Trollius europceus begins ' Grimmia torqitata 



Pot£7itilla alpestris i Rhacomitrium proiensum 



Rubus saxatilis \ Amphoridiuin Moiigeoiii 



Galiimi boreale begins I Diphyscium foliosum 



Hieraciu)ii angliciim 

 Sa/ix phylicifolia begins 

 Poa Parnellii 



Andrecea Rothii 

 Blindia acuta 



Webera cm da 

 Bryum a/pijiian 



„ conci7inattim 

 Zieiia julacea 

 Fissidens osinundoides 

 Psendoleskea catenulata. 



Between the Caldron Snout and the High Force the distance 

 is about five miles. During this part of its course the stream 

 flows in a broad open channel exceedingly full of loose stones 

 and rounded boulders, and nowhere do its immediate banks 

 rise to any considerable height. The average rate at which it 

 here declines in level is about 75 feet per mile. Ojjposite 

 Falcon Glints the moors of the Yorkshire side are not rocky but 

 slope gradually and come closely up to the river, but soon the 

 stream takes a sweep towards the north, and a broad and open 



August 1888. 



