LARCH. 



87 



light sand, sloping considerably on moist back-lying 

 alpine situations, covered towards the south by steep 

 hill, will sometimes produce sound larch ; whereas 

 did the same sand occupy a dry front or lowland 

 situation, the larch would not succeed in it. The 

 same moist back situation that conduces to produce 

 sound larch in light dry soils, may probably tend to 

 promote rot in the wet. The moisture and the less 

 evaporation of altitude jaft®y-«isar«J'*'«<5«^«^^^®®j 

 minish the tendency to rot in dry light sand, and 

 increase it in wet till. Larch will sometimes succeed 

 well in sharp dry alluvial sand left by rivulets. 



Soils incumbent on brittle dry trap, or broken 

 slaty sandstone. — Although soil, the debris of trap, 

 be generally much better adapted for the produc- 

 tion of herbaceous vegetables than that of sandstone 

 or freestone, yet larch does not seem to succeed 

 much better on the former than the latter. The 

 deeper superior soils, generally incumbent on the re- 

 cent dark red sandstone, are better suited for larch 

 than the shallow inferior soils incumbent on the old 

 grey and red sandstone. 



Ground having a subsoil of dry rotten rock, 

 and "which sounds hollow to the foot in time of 

 drought. 



Rich deaf earth, or vegetable viotdd.—lnde])end- 



