Analyses of Ashes of Plants. 



147 



Analysis of the ash of the bulb 



Silica . . . 

 Phosphoric Acid 

 Sulphuric Acid 

 Carbonic Acid 

 Lime . 

 Magnesia . 

 Peroxide of Iron 

 Potash . , . 

 Soda . . . 

 Chloride of Sodium 

 Chloride of Potassii 



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 100 parts. 



1-12 



10 - 71 



11- 22 

 12' 05 



8-87 



1-93 



0-63 

 32-39 



6-71 

 14-30 

 " none. 



99-93 



In 100 parts. 



7-35 



11- 70 

 6-99 

 6-10 



24-27 

 3-57 

 3-09 



12- 35 

 none. 



22-70 

 1-84 



Mineral matter remo'ved 

 in an Acre of Crop. 

 3-6 

 34-7 

 36-4 

 39-1 

 28-7 

 6-2 

 2-0 

 105-2 

 21 1 

 46-G 



323-6 



Mineral matter removed 

 in an Acre of Crop, 

 16-3 



26- 0 

 15-5 

 13-5 

 53-8 



7-9 

 6-9 



27- 4 

 none. 

 50-4 



4-1 



Total 



99-96 



221-8 



Specimen No. 86. — Green-topped White Turnip. 



From the Hev. A. Huxtahle, 



[Soil, dark mould; subsoil, yellow clay; geological formation, clay 

 under lower chalk ; drained ; two years in tillage. The crop in the 

 previous year wheat, but this is a stubble crop grown after peas this 

 - year.* Manured with unfermented cowdung and ashes and 1 cwt, of 

 , bones, with ^ cwt. of sulphuric acid. Remarkably thick crop, the 

 roots almost touching each other on all sides. Drilled in August. 

 Collected middle of November.] 



Estimated produce, bulbs, 20 tons. 



top, 



12 tons 5 cwt. 



Ash. 



0- 59 



1- 82 



Per centage of water and ash : — 



Water. 



Bulbs . . . 92-0 

 Tops . . . 88-0 . 



Mineral matter on an acre : — 



Bulbs 268 lbs. 



Tops .... . . • 500 



768 



* The description applies equally to this specimen and specimen 

 repeated to save confusion. 



Ash calculated 

 on dry substance. 

 7-40 

 15-20 



84, but it is here 



l2 



