182 Analyses of Ashes of Plants. 



Table 8. — Mineral Matter (in pounds) in one ton of entire crop o 



Turnips. 



No. of Spec. 



82 



83 



84 



85 



77 



86 



Mean 

 of the six 

 Specimens. 



Variety. 



Skirving's 

 Swede. 



Skirving's 

 Swede. 



Dale's 

 Hybrid. 



Dale's 

 Hybrid. 



Skirving's 

 Swede, 



Green-top 

 White. 



Relation of) 

 Bulb to Top j 



B.89 at 0 -75 Ash 

 T. 11 - 1-97 



86-0-76 

 14-1-95 



67-1-09 

 33-1-19 



82-0-72 

 18-2-35 



90-0-88 

 10-1 -61 



62-0-59 

 38-1-82 





Silica . 

 Phosph. Ac. 

 Sulph. Ac. . 

 liime . . 

 Magnesia . 

 Perox. Iron 

 Potash . . 

 Soda , 

 Chlo. Sodium 

 Chlo. Potass. 



0-79 

 1'63 

 2«91 



3- 15 



0- 62 

 0*22 



4- 12 

 2-81 



1- 65 



0- 32 



1- 88 

 3-04 

 3-97 

 0-67 

 0-13 

 5-21 

 1'96 

 0.95 

 0-13 



0*56 



1- 83 



2- 52 

 4-15 

 0-56 



0- 06 

 7-22 



1- 72 



3- 22 



0-81 

 2'49 



2- 12 



3- 37 

 0-57 

 0-36 

 5-42 

 0'89 

 3-95 

 0-17 



0-44 

 2-45 

 2-23 

 2-88 

 0-53 

 0-11 

 7'14 

 0-88 

 2-37 

 0-35 



0- 40 



1- 12 

 2*27 

 5-02 

 0-62 

 0'19 

 5-96 

 0-00 



2- 11 

 2-57 



0- 55 



1- 90 



2- 51 



3- 76 

 0-59 

 0*18 

 5-84 

 1'38 

 2-37 

 0-53 



Total . 



17-90 



18'22 



21-84 



20«15 



19.38 



20.26 



19.61 



This table exhibits the highly interesting result, that whatever 

 differences may occur in the quantity and composition of the ash 

 of either bulb or top, taken separately, upon the entire plant, the 

 ash is much more constant : thus in one ton of the entire crop of 

 the specimens here given, the ash is included between the 

 amounts of 18 lbs. and 22 lbs. There is, it is true, still some 

 considerable variation in the proportion of particular substances 

 (more especially of the phosphoric acid), but on the whole it 

 must be concluded that differences in the ash of either part of the 

 plant are in great measure counterbalanced by an opposite con- 

 dition of the other part of the bulb. It would seem, indeed, as 

 if a certain quantity of mineral matter is distributed through a 

 given weight of the whole plant, without respect to the propor- 

 tion of the top to the bulb — sometimes the greater proportion 

 being found in the leaves, sometimes in the bulb. 



We select three specimens which exhibit most strongly the 

 balance of mineral matter in the bulbs and tops ; — - 



Table 9. 



Speci- 

 men. 



Proportion per Ton 

 in lbs. 





Ash. 



Mineral Matter in a Ton of 

 entire Crops (in lbs.). 





Bulb. 



Top. 



Bulb. 



Top. 



Bulb. 



Top, 



Both. 



84 

 85 

 86 



1501 

 1837 

 1389 



739 

 403 

 851 



1-01 

 0-72 

 0-59 



1- 19 



2- 25 

 1-82 



15-15 

 13-31 

 8-22 



8- 79 



9- 06 

 15-48 



23-94 



22- 37 



23- 70 



