160 



Analyses of Ashes of Plants. 



Analysis 



01 me dbu 01 iiic lop . — 







In ICO parts. 



]Vlin6riil matter rcinovctl 





in an Acre of Crop. 







3-2 





4-39 



10-3 





6 26 



14-7 





. 6-11 



14-4 









Magnesia 



. 9-10 



21-4 





0-48 



1-1 







04-8 









Chloride of Sodium . 



. 29-85 



70-1 



Chloride of Potassium , . 



none. 



' none. 



Total ... . 



. 99-96 



235.0 



Specimen No. 109. — Globe Mangold-Wurzel. 

 Pro7n Mr. Gu-ppy.^ 



[>S'o^7, red and gravelly ; subsoil, gravel to a great depth. Previous crop 

 wheat, 27 bushels per acre ; manured with 70 " seams " of half-rotten 

 farm-yard manure per acre, mixed with earth as compost. Drilled 

 first week in May ; crop rather thin, but fine healthy plants ; turnips 

 sown to fill up. Collected early in November.] 



Produce, in roots, rather more than 30 tons.f 



(After the mangold was taken in there remained on the field half a crop 

 of turnips.) 



Per centage of water and ash : — 



Water. Ash. calculated 



on dry substance. 



Roots . . . 86*0 . • 0-92 . . 6-60 



Mineral matter of an acre : — ■ 



Roots 780 lbs. 



Specimen No. 110. — Globe Mangold-Wurzel. 



From Mr. Thos. Broivn. 



[Soil, subsoil, and geological formation same as Specimen No. 111. Pre- 

 vious crop 14 tons of swedes ; manured for the mangold with coal- 

 ashes and night-soil. Drilled April 11, 1846; crop looked welL 

 Collected in November.] 



Weighed produce, in bulbs, 36 tons 14 cwt. 



Per centage of water and ash : — 



Water. Ash. calculated 



on urj' substance. 



Roots . . . 8i-0 , . 1-54 . . 9-6 



Mineral matter on an acre : — ■ 



Bulbs 1266 lbs. 



* Grown by Mr. Tbomas Devvdney, Silverton, Devon. 



t The entire plant was not sent us. We have no information concerning the tops. 



