21. YORKSHIRE. 34.; 



but in a lefs degree, with the quality of the 

 ftone : the method of burning, too, varies 

 the proportion. Three chaldrons of lime from 

 one of coals (the meafures equal) may be con- 

 lidered as the mean produce. From two ancj 

 a half to three and a half for one, includes the 

 whole extent of produce of well-burnt lime. 



4. Filling. Some kindling, and an extra- 

 ordinary proportion of coals being ufed at the 

 eyes, and at the bottom, the kiln is filled up 

 with ftones and coals, in thin alternate layers j 

 thofe of ftones five or fix inches thick ; with 

 coals in proportion ; the coals, if not fufii- 

 cicntiy fmall, being previoufly reduced to a 

 gravel-like ftate -, in order to run down more 

 freely between the interftices of the ftones, 

 ^nd thereby to mix more evenly with them. 



The materials are caft into the kiln with 

 large fcuttles ; which are filled with ftones, 

 by means of an iron-toothed rake, compofed 

 of four teeth about fix inches long, of a heacl 

 about a foot long, and a handle about four 

 feet long. 



If feveral men be employed in filling a 



kiln, it is common for each man to fill and 



empty his own fcuttle. But this is an uncer- 



Z 3 taittj 



