DOMAIN V. CALCAREOUS. 



for mill-stones. This fact is well known at 

 Messina ; and stones are incessantly taken from 

 the shore, without their being exhausted or the 

 spot being lowered. The waves throw fresii sand 

 intOithe vacancies; and, in a few years, this sand 

 becomes so agglutinated, that the stones of new 

 formation cannot be distinguished from the an- 

 cient." 



- In 583, Saussure mentions rocks consisting of 

 alternate layers of limestone and calcareous sand- 

 stone, in the mountain of Buet. In the same 

 mountain there is a pudding-stone, composed of 

 fragments of grey and reddish quartz, reddish 

 felspar, and little yellow pyrites, united by a cal- 

 careous cement. 



The molasse of Geneva is a sandstone with a 

 calcareous cement, and a mixture of clay ; it is 

 soft and impure. That of Lausanne is one of the 

 hardest and best : it is of a beautiful grey inclin- 

 ing to blue with a calcareous gluten. The moun- 

 tain of Voirons, two leagues from Geneva, chiefly 

 consists of calcareous sandstone*. 



Calcareous sandstone, from Fontainebleau, 



The same, from Livonia. 



The same, from Gothland, Sweden. 



* Sauss. 61, 1100, 273. 



