THE SEA-BED. 



609 



landscape are due to it. From the time the spring emerges to the time 

 when it has developed into a river, bearing fine ships upon its restless waters, 

 the universal fluid is always at its work of destruction and benefit combined. 

 From the limpid stream we pass to the salt ocean, the reservoir of all the 

 waters of the globe. 



We have in this chapter briefly considered two very important forces 

 which have much to do with the varying conformation of the earth viz., 

 fire and water in their results of volcanic action and erosion. The sea will 



tell us something more. 



39 



