Analyses of Ashes of Plants. 



199 



of the top of beet — and five analyses of the root^ and three of the 

 top of carrot. The numbers are of course provisional — that is, 

 thej may be modified slightly by future researches ; but, as prac- 

 tical data, they may be regarded as sufficient to establish the 

 mineral composition of the several roots. 



Table 22. — Comparative View of the Composition (in 100 parts) of 

 the Ash of Turnips, Mangold, and Carrot (the averages of the 

 Analyses). 





Bulb. 



Top. 





Turnip. 



Mangold. 



Carrot. 



Turnip. 



Mangold. 



Carrot. 





1-81 



2-57 



1-19 



3-99 



1-99 



4'56 



Phosphoric Acid . 



9-85 



3-08 



8-55 



6-17 



5-15 



1-67 



Sulphuric Acid . , 



13-12 



3-37 



6-55 



8-43 



5-80 



6-20 



Carbonic Acid 



11-96 



18-32 



17-30 



9-98 



6-49 



17-82 





9-93 



1-95 



8-83 



28-49 



8-65 



32-64 



Magnesia .... 



2-61 



2-11 



3-96 



2-81 



8-66 



2-92 



Peroxide of Iron . . 



0-46 



0-60 



1-10 



1-68 



0-96 



2-40 







24-79 



32-44 



15-21 



21-26 



7-12 





7-96 



13-75 



13-52 



2-84 



7-01 



10-97 



Chloride of Sodium . 



8-13 



29-41 



6-50 



15-30 



33-96 



13-67 



Chloride of Potassium 









5-04 









99-93 



99-95 



99-94 



99-94 



99-93 



99-99 



Such are the general features of the mineral matter considered 

 without reference to the quantity of it existing in the plants ; but 

 this is not the most important point connected with this subject. 



In comparing one plant with another a knowledge o{ the com- 

 position of the ash is only of value as it serves to calculate the 

 mineral matter in relation to a given weight of the plant— the fol- 

 lowing table affords this information : — 



rABLE 23. — Comparative View of the Mineral Matters contained in one ton of 

 Turnip, Mangold, and Carrot (the average of ail the Analyses). 





In one Ton of the Bulb. ' 



In one Ton of the Top. 



In one Ton of the entire Plant. 



Turnip. 



Mangold. 



Carrot. 



Turnip. 



Mangold. 



Carrot. 



Turnip. 



Mangold. 



-Carrot. 



5ilica . 



0-34 



0-54 



0-24 



1-73 



0-76 



4-46 



0-55 



0-56 



1-22 



I'hosph. Acid 



1-77 



0-66 



1-73 



2-60 



1-94 



1-64 



1-90 



0-87 



1-63 



Sulplj. Acid . 



2-33 



0-65 



1-31 



3-46 



2 '20 



5-61 



2-51 



0-90 



2-37 



Lime . , 



1-76 



0-41 



1-77 



11-29 



3-31 



30-24 



3-76 



0-87 



8-21 



Magnesia ^ , 



0-47 



0-43 



0-80 



1-16 



3-27 



2-58 



0-59 



0-89 



1-19 



r^erox. of Iron 



0-07 



0-12 



0-22 



0-72 



0-52 



2-36 



0-18 



0-15 



0-73 



Potash . . 



6-07 



4-99 



6-59 



6-08 



7-86 



6-64 



5-84 



5-54 



5*60 



Soda . . . 



1-46 



3-02 



2-71 



1-12 



2-52 



9-67 



1-38 



2-91 



4-33 



Z!hlor. Sodium 



1-49 



5-29 



1-42 



6-15 



12-82 



11-95 



2-37 



6-51 



3-55 



Chlor. Potass. 









2-02 







0-53 









15-76 



16-11 



16-79 



36-33 



35-20 



75-15 



19-61 



19-20 



28-83 



