144 



Analyses of Ashes of Plants. 



Analysis of the ash of the bulb : — 





In loo parts. 



Mineral matter removed 





in an Acre of Crop. 



Silica . . . . t 



• 2 '69 



. . 9*4 



IPliosplioric Acid • • • 



y-3i 



31*3 



Sulphuric Acid < • • 



. 16'13 



. . 54-2 



Carbonic Acid . 



. 10-74 



, . 36-2 





. 11-82 



. . 39-7 





. 3-28 



. . 11-0 



Peroxide of Iron . . • 



. 0-47 



. . 1-6 



Potash 



. 23-70 



79-6 





. 14-75 



. . 49-6 



Chloride of Sodium . 



. 7-05 



23-7 



Chloride of Potassium • 



. none. 



none. 



Total 99-94 336-3 



Analysis of the ash of the top : — 





In 100 parts. 



Mineral matter removed 

 in an Acre of Crop. 





8-Ot 



. . 8-7 





, . 4-85 



. . 5-2 





10-36 



. . 11-2 





, 6-18 



. . G-6 





28-49 



. . 30-8 





2-62 



2-8 





3-02 



. . 3-3 





11-56 



. . 12-5 



Soda 



12-43 



. . 13-4 



Cliloride of Sodium . 



. . 12-41 



. . 13-4 



Chloride of Potassium . 



none. 



, . none. 



Total , 99-96 107-9 



Specimen No. 83. — Skirving's Swede. 



From the Rev. A. Huxtahle. 



[/Sioz7, dark mould; subsoil, yellow clay; geological formation^ clay 

 under lower chalk ; drained; two years in tillage. After good crop 

 of wheat; turnips manured with 10 bushels of soot, and 10 bushels 

 of pure cowdung mixed with 20 bushels of ashes, and 1 cwt. of 

 bones with 56 lbs. of sulphuric acid. Drilled early in May. Crop 

 dreadfully mildewed, and when collected (in November), three-fourths 

 of the Swedes rotten.'\ 



Produce in bulbs, 16 tons. 



„ in tops, 2 tons 12 cwt. 



Per centage of water and ash :— 



Water Ash calculated 



on dry substance. 



Bulbs ... 89.0 . , 0-76 . . 6-90 

 Tops . . . 85-0 . . 1-95 . .. 13-00 



Mineral matter on an acre : — 



Bulbs 27nbs. 



Tops 114 



385 



