52 



Limerick ; trap in Antrim ; and limestone throughout the 

 whole centre of the kingdom, from Dublin Bay to the 

 Atlantic. 



If the subsoil admits of a clear and distinct identifica- 

 tion with its subjacent rock, it might be described as 

 follows : 



1. Granitic sand or clay subsoil. 



2. Mica slate or clay ditto. 



3. Decomposed red or white sandstone ditto. 



4. Clay slate, argillaceous, or slaty ditto. 



5. Calcareous sand or clay ditto. 



The colours should also be remarked as, blue, red, yel- 

 low, whitish, &c. The above comprehend merely the 

 principal formations; where other varieties occur, the 

 geologist will be at no difficulty in giving to the subsoils 

 resting upon them, their proper appellation, as quartzose, 

 shale, chalk, greenstone, porphyritic, alluvial, &c. 



VII. LOCAL CIRCUMSTANCES AFFECTING THE VALUE OF LAND. 



The principal local circumstances which exercise an in- 

 fluence on the value of land, are 



1. Its distance from a market for produce. 



2. Its position with respect to roads, public and private. 



3. Inequalities of superficies. 



4. Its climate and elevation. 



5. Its rates and taxes. 



6. Exposure. 



1. DISTANCE FROM A MARKET. Lands situate not more 

 than ten nor less than five miles from a good market for 

 its produce, may be considered in a medium state as to 

 distance. 



Within a circle of five miles around a good market town, 

 its contiguity is a favourable circumstance, and enhances 

 its value. 



At four miles distance, its value is increased to the 

 extent of about 6d. in the pound. 



At three miles distance to about Is. in the pound. 



At two miles distance to about 2s. 6d. in the pound. 



