280 Annual Report for 1914: of the Consulting Chemist. 



This material, which was obtainable for the mere cost of 

 cartage, would be quite worth using if near at hand. 



10. Ash of Hop-hine. 



A sample was sent in order to ascertain the amount of 

 potash contained. The analysis was : — 



Percentage of : — 



In natural state On dry basis 



Moisture 36-75 — 



Potash 1-79 2-83 



11. Lime. 



A B C D 

 Oxide of iron and 



alumina . 179 4-55 7-33 3-46 



Lime . . . 91-58 66-93 58-94 71-06 



Magnesia, &c. . -46 7-06 22-28 -99 



Silica . . . 1-69 12-58 5-05 U5-04 



Carbonic acid, e^-c. 4-48 8-88 



100-00 100-00 



" A " was an excellent, well-burnt, lime. " B " came from 

 Newmarket and cost £1 per ton on the land. It was of inferior 

 quality. " C " cost 15s. and " D " 19s. per ton delivered. 

 " D " was much the better of these two, but not as good as it 

 really should be for the price. 



12. Ground Limestone. 



" A " was from Buxton and cost 13s. 6d. per ton delivered. 

 " B " came from Much Wenlock, Salop, and cost 12s. lOd. per 

 fon delivered. " A " was much the better of the two. 



Though the question of the utility of ground limestone 

 must still be considered a subject for experiment, the material 



I 



