4. YORKSHIRE. 35 



the expence of management and produce, 

 and confcqnently in the rental values of 

 lands of diiTerent qualities : and this may 

 account in fome meafure for the extraordi- 

 nary eftimation in which good land is held 

 in the DiftricT:. 



This diftinftion is in general too little at- 

 tended to upon large eftates, the number of 

 acres being in general too much regarded, 

 and the quality of the foil too little. Maps- 

 are convenient inftruments in the hands of 

 managers of eftates ; but unlefs they fhew 

 with fufticient accuracy the quality and fitu- 

 ation, as well as the quantity of the land they 

 feprefcnt, they become dangerous guides 

 in fixing a rental : an accurate valuation is 

 much more eilimable than a handfome plan. 

 The art of furveying may be learnt in a 

 fchool ,* but the judgment rcquifite in the 

 valuation of lands can only be obtained by 

 great experience in the field, and by fome 

 eonfiderable Ihare of knowledge of the par- 

 ticular lands to be valued. 



VI. Covenants. Under the old tenancy, r^- 

 pairs were done, and new eredions made entire- 

 ly by the tenants, landlord allowing timber -, 

 D 2 and 



