158 



Analyses of Ashes of Plants. 



Analysis of the ash of the top : — 



Silica . 

 Phosphoric Acid 

 Sulphuric Acid . 

 Carbonic Acid . 

 Lime . 

 Magnesia . 

 Peroxide of Iron 

 Potash . , . 

 Soda^ . . 

 Chloride of Sodium 

 Chloride of Potassium 



In loo parts. 



2-35 



5- 89 



6- 54 

 6*92 

 8'72 

 9-84 

 1-46 

 8-34 



12-21 

 37-66 



Mineral matter removed 

 in an Acre of Crop. 



10- 5 



11- 9 

 1-8 



10-1 

 14-8 

 45-5 

 none. 



Total ' . 



99-95 



120-9 



Specimen No. 107. — Long Red Mangold-Wurzel. 



From the Rev A. Huxtable. 



[Soil, subsoil, and previous culture same as in Specimen No. 106, being 

 part of the same field. Manured for the mangold with unfermented 

 manure {without straw^ of animals fed on linseed and corn mixed, 

 with 1 cwt. of bones dissolved in ^ cwt. of sulphuric acid per acre, 

 and worked up with ashes. Dibbled (both seed and manure) early 

 in May. Collected in November.] 



Produce, in roots, 24 tons. . . ^ 



„ in tops, 3 tons 15 cwt.* 



Per centage of water and ash : — - 



Roots . , . 91-0 

 Tops . . . 90-0 



Mineral matter on an acre :— 

 Roots 

 Tops 



Ash. 



0- 64 



1- 79 



Ash calculated 

 on dry substance. 

 7-10 

 17-9 



343 lbs. 

 150 



Analysis of the ash of the root: 



493 





In 100 parts. 



Mineral matter removed 

 in an Acre of Crop. 



Silica 



1-40 



4-8 



Phosphoric Acid 



1-65 



5-7 



Sulphuric Acid . 



3-14 



10 7 



Carbonic Acid . 



. 15-23 



52-3 



Lime . . . 



1-90 



6-5 



Magnesia . . 



1-79 



6-1 



Peroxide of Iron 



0-52 



1-8 



Potash 



. 21-68 



74-3 



Soda 



3-13 



10-7 



Chloride of Sodium 



. 49-51 



169-8 



Chloride of Potassium . 



none. 



none. 



Total . . . 



. 99-95 



342-7 



* " Five tons "—Mr. Huxtable. 



