How many of thefc lochs, when drained, 

 have gr?at treafures of fliell marl in the bot- 

 tom, which is an excellent manure, cither 

 for convs or grals. 



The water that is impregnated with Ihell 

 marl, or lime-fLuie, is very rich. P.ock marl, 

 or fullers earth, is good alfo, and clay for 

 Kght foils. 



How PI an y very cxtenfive moiles, morals , and 

 meadows could be thus drained, fo as to pro- 

 duce great crops of grafs and corn ; and af- 

 ter being drained, much enriched by being 

 flooded yearly ? Thejfe, in many places ex- 

 tend very far. I am informed, that the mofs 

 to the eaftv/ard of Glencoe, ftretche.s out as 

 lie brae of Marr, fifty or lixty miles ; 

 .all of which could be drained, and then 

 .flooded. 



Mr John Knox, in his Tour through the 



Highlands of Scotland, and the Hcbride ifles, 



in 1786, fays in page 272. " Between Dur- 



" ncfs and Caithnefs there is a tradl called the 



on, which fignifies, the great morals, 



' about twenty or twenty- four miles in 



by eight in breadth, which muft 



I by all travellers on that coaft. 



