Farming of Derhijshire. 41 



Phosphoric acid ....... 



Organic matter in a state of decay . . . . 7 • 620 



Water 3-600 



Silicates containing 'SIS of potash and '206 of soda 82; 641 



Carbonate of lime and magnesia .... '098 



Alumina, oxide of iron, and manganese . . . 5*220 



Phosphoric acid combined with alumina . . . 0*025 



Sulphuric acid (combined) ..... 'OOG 



Chlorine, ditto '002 



Soluble potash and soda '003 



Soluble silica '005 



Loss -780 



100-000 



Note by Mr. HayicoGd. — " This soil contains a large quantity of mica 

 which makes the percentage of potash so high. It would be benefited by 

 lime, which promotes the decomposition of that mineral." 



Throughout the whole range of the millstone-grit there are 

 found occasionally patches and frequently many acres of a poor 

 ferruginous soil, called from its colour fox-earth. Nothing will 

 grow on this soil except the wild beech ; and when it happens 

 in a well-cultivated field it shows a "plague-spot" on the fair 

 face of nature. The soil, analysed and given below, is from 

 land in Mr. Greaves' occupation, on the confines of the county, 

 and within an easy distance from the source of the Derwent. 

 It may be interesting to compare this soil and the district in 

 which it is found, being the extreme north, with other more 

 favoured soils and climates in the sunny south, where the 



Derwent becomes a river of magnitude, and joins the " silvery 



Trent " at Shard low. 



Mechanical analysis of poor fox-earth from the millstone-grit r 



100 parts contain — 



Coarse silicious sand 46 -SCO 



Fine sand 9*000 



Ferruginous soil ....... 17*900 



Impalpable clay ....... 23*o00 



Organic matter ....*... 2 * 800 



100-000 



Chemical analysis of fox-earth: 100 parts contain — 



Organic matter in a state of decay . . . . 2 * 800 



Water . . . 6*900 



Silicates, containins: 0*50 of potash and *022 of soda 1 o- -^.r. 



along with pure silica . . . . .J 



Alumina — Oxide of iron and manganese . . . 4*04S 



Carbonate of lime and magnesia .... *010 



Phosphoric acid '002 



Sulphuric acid, chlorine, soluble potash, and silica . | ^Julsilvu!] 

 Loss ..... * 540 



100-000 



