32 THE STORY Ol THE EARTH. 



nulation by the evaporation 

 of land-locked basins of the sea. In Lancashire 

 and Cheshire, in the lower part of the here 



. as the u millet see* 

 because the separate grains of sand flow betw< 

 the fingers like millet seed or shot. Th< se minute 

 not all of quartz but part". 



They can only be compared to blown sands 



deserts in their pebble-like forms. 



tmpletely rounded sand grain £ 

 ordinary sandstones have prob their 



character from long continued rolling, partly in 

 rivers, partly on shores, as they have passed I 



ilogical deposit to another in BU< 



a consequence of the construc- 

 tion of new layers of rock OUt of the mate 



ancient lands ; a pr< >cess repeated again and again, 



and still in 



Another terrestrial rock which ,:ceiy be 



termed water-formed, because it is accumulated by 

 vegetable growth, is seen in the peat, which ( 

 ers large parts of the earth's surface where the 

 mean temperature falls l>< I , tt 



known that peat frequently originates in the I 



because they ol 

 drainage on level lands, un: 



form a to the land ui 



bun- 



accumulations in < !ambi ai e 



bee: I to attain a thu k In 



th«* i • i . tnd, as in In lai d, there are two 



- r has j ' ^\^' 



rod the 



: ■ 

 are oft ted by a 



the u but in, the •' 



