i 58 ) 



Forest trees luxuriate in such sails and the best kinds fii wood 

 are grown there. 



Rocks of this system are rich in potash and other fertile 

 elements and the soils derived from them have a good texture 

 similar to that of granitic soils. Their capacity of absorption 

 is in general greater than that of granitic soils. 



In south-west Japan, lands even if inclined^ are made 

 into paddy fields, and where there are irrigation facilities, 

 produce rice of the best quality. In the Province of Kii and 

 Izumi, these slopes are cultivated up to the summit, and 

 planted with citrous trees, arranged in regular terraces. 



The Crystalline schist system also form steep lands. The 

 soils are rich in fertile elements, particularly in magnesia. 

 Moreover, they have a large capacity of absorption especially 

 for nitrogen and phosphoric acid. While thay are rich in the 

 fertile elements, the productivity differs widely nor different 

 kind of crops, and according to the site of the plantations and 

 the nature of the subsoil. It also varies as to the admixture 

 of gravel. Where the natural drainage is sufficient in elevat- 

 ed situations, or where they are underlaid by a porous subsoil 

 on flat land they have proved highly productive. Moreover, 

 as they usually contain gravel or fragments of chlorite schist, 

 their texture becomes much more improved and productivity 

 is increased. Fruit trees have mostly been grown with 

 complete success in such soils in south Japan, especially -citrous 

 fruits and loquat trees as well as vines, both in the quantity 

 and quality of the produce. Besides, the famous growing 

 centers of tobacco, tea and mulberry are located in soils of this 

 category^ 



They are often too heavy and retentive for rice growing 

 and require improvements of drainage for making paddy fields. 



