in- price which the latter pays for the commodity. It has been vention may possess, I wish to point out two things evident for some time that some better system of stor- which occur to me, namely, that Professor Barff has age than that of keeping the oil in huge tanks is re- Fy.l. Hsu— n only… … pump, o, is received in a small collecting reservoir, n, of the iron being rapidly covered with a fixed and im- Dermeable layer of the magnetic oxide of iron which whence it is directed by metallic canals, m, with the arrests the chemical ac- different cisterns. In tion. The second re- order to…
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