Page:Treatise on Cultivation of the Potato.djvu/41

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37

Results of the Analysis of a Sample of Vegetable Juice, received from Mr. Torbitt, of Belfast. Results of the Analysis of a Sample of Liebig's Extract of Meat.
PER CENTAGE COMPOSITION. PER CENTAGE COMPOSITION.
Grains.
Water 29.76
Organic Alcoholic Extractive Matter 24.32
Organic Extractive Matter, insoluble in Alcohol, containing 2.19 Grains of Starch 18.30
Mineral Matter *27.62

100.00
Grains.
Water 18.56
Organic Alcoholic Extractive Matter 45.43
Organic Extractive Matter, insoluble in Alcohol, containing 8.56 Grains of Gelatine 13.93
Mineral Matter *22.08

100.00
 
Containing 2.76 Grains of Nitrogen, equal to 17.66 Grains of Albuminous Matter. Containing 7.19 Grains of Nitrogen, equal to 46.02 Grains of Albuminous Matter.


*Containing
2.13  Grains  Sulphuric Acid.
3.89 Chlorine.
1.50 Lime.
1.39 Phosphoric Acid.
13.86 Potash.
*Containing
0.49  Grains  Sulphuric Acid.
1.84 Chlorine.
8.22 Phosphoric Acid.
10.49 Potash.



(Signed)

ARTHUR HILL HASSALL,
London.


Then the next step was to test the invention practically. I put up here in Belfast an experimental factory; I extracted 120 gallons of juice out of each ton of tubers, containing the whole flesh-forming matters of the plant; rasped up the compressed solid matters; separated rather more starch than is obtained by the usual processes, and I had then remaining that which is now lost—to wit, the 120 gallons of juice, and the pulp or raspings, which always contain a considerable quantity of starch, and which forms little mountains at all the potato starch manufactories. These two lost products, the juice and pulp, I mixed together, adding the necessary quantity of stilt, and used as cattle food; and I found, as was to be expected, that it formed a food which they preferred to almost any other which could be given to them.