Farming of Derbyshire. 47 



ground with sheep, and fenced in the usual way; and the first 

 draught of fat hogs will be sold in jNIay, and average 72 lbs. 

 each. 



75 feet. 



9 : siieci. 







Shed. 



9 It. 





i 











55 









» 













18 feet. 





En 



1 

 1 



Turnip 







1 



House. 









— 10 >— 



10 — 





Mr. Haywood's analysis of shale soil, taken from a field on 

 the west side of Birchills, and near the Hassop estate, is as 

 follows : — 



Mechanical analysis : 100 parts contain — 



Coarse and fine sand 17*500 



Fine soil . .35*600 



Impalpable clay ....... 40-000 



Organic matter of the nature of humus . . . 6 • 900 



100-000 



Chemical analysis of shale soil : — 



Organic matter (humus) in a state of decay . . 6 '900 



Water . . . 8*100 



Silicates, containing '849 potash, and '650 soda, lime,) '-i.i29 



and magnesia . . . . . . .) ' 



Alumina — Oxides of lime and manganese . . 12*750 



Carbonate of lime • 870 



Do. of magnesia '130 



Phosphoric acid (combined with lime) . . . '110 



Sulphuric acid (do.) '002 



Chlorine (combined) '001 



Soluble potash and soda . . . . . . '004 



Soluble silica * 004 



100-000 



Analysis of shale substratum : — 



Bituminous nature . . . . . . .11-80 



Silicates, containing '34 of potash and '12 of soda . 49*40 



Carbonate of lime 3 '20 



Do. of magnesia (a trace). 



Phosphate of lime *12 



Sulphuret of iron (a trace). 



Oxide of iron and alumina . . . . .3*20 



Water 2-80 



Loss . . . . . -48 



100-000 



Note hy Mr. Haywood. — " This soil contains potash minerals in abundance, 

 which when acted on by lime are rendered soluble ; hence lime (which has 



