Artificial manures; their chemical selection and scientific application to agriculture . was formed—theAtmospheric Products Company—and a small trial plant wasestablished to test the practicability of the process. A hightension (10,000 volts) direct current was employed, and as itis a matter of difficulty to induce discharges at high voltagesto pass steadily, the inventors constructed their apparatus inthe form of rotating drums fitted with projecting these approached one another they produced sparkdischarges which were immediately interrupted. However,it was found that the cos
Artificial manures; their chemical selection and scientific application to agriculture . was formed—theAtmospheric Products Company—and a small trial plant wasestablished to test the practicability of the process. A hightension (10,000 volts) direct current was employed, and as itis a matter of difficulty to induce discharges at high voltagesto pass steadily, the inventors constructed their apparatus inthe form of rotating drums fitted with projecting these approached one another they produced sparkdischarges which were immediately interrupted. However,it was found that the cost of working the process was suchthat the synthetic product could not compete in price withChili saltpetre, and the experiment was abandoned in thesummer of 1904. The central idea of distributing the elec-trical energy among a great number of small arcs of shortduration was valuable, for it enabled the energy consumed inthe arcs to be kept fairly steady, but the technical difficulties 280 ON CHEMICAL MANUEES LECT. XVI. OUTLET* CIRCULAT/NCOIL OR WATER INLET WATER INLET PIPE. 14 — ?\ AIR INLET 8 OUTLET FOR GASES FIG. 2
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