6. YORKSHIRE. 121 



The fame perfon, whofe penetration r.nd 

 judgment in the few fubjedts he has more 

 particularly employed his mind upon are fu- 

 perior to thofe of moft men, has ftruck out 

 a new idea relative to the jJaking of lime 

 for mortar. 



Lime, whether it be intended for cement 

 or for manure, ought to be reduced entirely 

 to a dry po'wder. And for cement it ought tq 

 be mixed, in this ftate, evenly and intimate- 

 ly with the fand. 



It is almoft, if not utterly impoffible to 

 reduce lime $ntirdy to powder, with ivater 

 alone ; fpmc part or other will always be fu- 

 per-faturateJ, and thereby be reduced to 

 2.pajie; whdethe outlides which are expofcd 

 to the airnofpaere will (unlefs th^; ilone be 

 extremely ^««?j fall in granules, not into pow- 

 der. 



Every piece of pafte and every granule, 

 though but the fize of a pea or a muftard 

 feed, is ufelefs, if not detrimental to the ce- 

 ment ; for with thefe the granules of fand 

 cannot be intimately mixed ; much lefs be 

 coated with them ; as they may, and un- 

 dpubtedly ought to be, with lime in-powder. 



But 



