d then a up the nitrogen from the air within the soil, and of Of the various elements with which it is necessary to layer of coal dust. This is repeated until the kilns are} presenting it to the higher plant in such a form that full. The coke fire at the bottom causes the first supply the soil in… … SHELL LIME KILNS NEAR NEW YORK. as it forms nearly four-fifths of the air, it is not sur- garded as strictly parasites upon the roots of the fire to the layer of coal dust and up and through the Leguminose, because they are serviceable to those cul- next layer of shells, the flames gradually…
Internet Archive · Public domain (published before 1931). Free to use for anything.
