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Show 1NATURAL ROCKS SUITABLE S I FOR RESTORING FERTILITY t I CHICAGO. Sept 0. The natural lJ jl mucks, such ns lime, gypsum, phos-phate phos-phate and potash shales can be made afford permanent soil fertility " I svs:. in, according t.. Dr. William r I rocker. who addressed delegate ink' to form the AS8dclated Naf I u til Sail Fertility Resources. I II. D. MacDonald. Chicago, secre-tary, secre-tary, said the purpose of the meeting; was to bring about a concerted move-ment move-ment for restoring the soil of the conn- J try to its natural state. |