ir)4 



TALKS OX MAVrRES. 



COMPOSITION OF CLOVER-SOIL ONCE MOWN F(^K IIAY, AND 

 AFTERWARDS LEFT FOR SEED. DRIED AT 213 FAIIR. 



Soluble in hy 

 drochloricacid. ' I'oUish 

 Soda.. 



Organic matter 



Oxides of iron 



Alumina 



Carlionate of lime. 

 .Mairne'-ia 



Insoluble in acid 



Chloride of sodium 



l'ho!*|>lioric acid 



, SulpLuric acid 



Insoluhlo silioioufl matter, 73.84. ConsistinRof : 



Alumina 



Lime ( in a state of silieate) 



Magnesia 



Potash 



Soda 



L Silica 



5.34 



0.07 



4.51 



7.51 



1.27 



.53 



.Iti 



.l« 



.15 



.I'J 



4.14 



3.69 



.68 



.34 



.21 



a5^88 



99:59 



'• The soil, it will he seen, in genornl character, resembles the pre- 

 ceding sample; it contains a good (leal of potash and phosplioric 

 acid, and may be presumed to l)0 well suited to the growth of 

 clover. It contains more carbonate of lime, and is somewhat 

 lighter than tlie .sainjile from the part of the field twice mown for 

 hay, and may be termed heavy calcareous clay. 



" An acre of this land, 18 inches deep, weighed, when very nearly 



dry: 



Lb». 



Surface, six inches 2,407.900 



Next " 2,444,300 



Third " 2,480,.'J00 



"Or in round numbers, every six inches of soil weighed per 

 acre 2i millions of pounds, which agrees tolerably well with the 

 actual weight j)er acre of the preceding soil. 



"The amount of phosphoric acid and nitrogen in each six-inch 

 layer was determined separately as before, when the following 

 results were obtained : 



IN DRIED SOIL. 



Find Second Third 

 sir inches, air inches, sir inches. 



Percentage of phosphoric acid 151) .166 .140 



Nitroffen 18'.t .VM .089 



Equal to ammonia 339 .163 .108 



"An acre, according to these determinations, contains in th» 

 three separate sections : 



