Physical description

Five page copy of a broadcast titled 'Growing Plants Without Soil' broadcast 18 June, 1937 in Boston, Mass. Typed on paper with printed letterhead - Chemistry of Today. Mentioned is plant growth, how water is used by the plant, the relationship between plants, dew and rain, fertilisers, chemicals and how to set up a hydroponic system. Broadcast (1) written at the top of the page.