SOILS. 



27 



The following is an analysis of 

 Tortile soils, made by Sprengel : 



Soil near 

 Oeterbriich. 



Silica, Quartz, Sand and Silicates 84-510 



Alumina .... 6-435 



Oxides oflron . . . 2395 



Oxide of Manganese . . 150 



Lime .... 0740 



Magnesia . . . . 0-525 

 Pt>f;i-!i ;iml S-.tdn extracted by water 0-009 



Phosphoric Acid 0-120 



Sulphuric Acid . . . 0-046 



Chlorine in common Salt 0-006 



Humic Acid . . . 0-780 



Insoluble Humus . . . 2 995 

 Organic matters containing nitrogen 0-960 



Water . 0029 



three specimens of very 



100 100 100 



for a long time in pasture, and 



for the fattening qualities of its 



The above had remained 

 the second was remarkable 

 grass when fed to cattle. 



The following are arable lands of great fertility : 

 1 2 



Soil from Moravia. Soil. 



Silica and fine Sand 77-209 87-143 

 Alumina . . 8-514 5-666 

 Oxides of Iron . 6-592 2-220 

 Oxide of Manganese 1-520 0-360 

 Lime 0-927 0.564 

 Magnesia 1-160 0'312 

 Potash chiefly com- 

 bined with Silica 0-140 0-120 

 Soda, ditto . . 640 0-025 

 Phosphoric Acid com- 

 bined with Lime 



and Oxide of Iron, 0-651 0-060 

 Sulphuric Acid in gyp- 

 sum . . ' 0011 0-027 

 Chlorine in common 



salt . , 0-010 0-036 

 Carbonic Acid united 



to the Lime . 0-080 



Humic Acid . 0-978 1-304 



Insoluble Humus 0-540 1-072 

 Organic substances 



containing nitrogen 1-108 I'Oll 



Subsoil, 



94-261 

 1-376 

 2-336 

 1-200 

 0-243 



3 



Soil 



From Belgiui 



64-517 



4-810 



8-316 



0-800 



B f 9-403 



0-310 C Ma g cf 10-361 



0-240 



trace 

 0-034 

 trace 



S 0-100 

 I 0.013 



1-221 



0.009 

 0-003 



0447 



100 100 100 100 



" Of these soils, the first had been cropped for 160 years 

 successively, without either manure or naked fallow. The 



