LETTER IV. 1 



30 // same. 



in a former letter the freestone of this place 

 has been only mentioned incidentally, I shall 

 here become more particular. 



This stone is in great request for hearth-stones, 

 and the beds of ovens : and in lining of lime-kilns 

 it turns to good account ; for the workmen use 

 sandy loam instead of mortar ; the sand of which 

 fluxes,* and runs by the intense heat, and so cases over the whole 



* There may probably be also in the chalk itself that is burnt for lime a pro- 

 portion of sand : for few chalks are so pure as to have none. 

 1 Obviously an added letter. ED. 



