Jasper County Democrat, Volume 7, Number 42, Rensselaer, Jasper County, 21 January 1905 — Why Leave Turn Brown. [ARTICLE]
Why Leave Turn Brown.
The green matter in the tissues of a leaf is composed of two colors, red and blue. When the sap ceases to flow In the autumn the natural growth of the tree is retarded, aud oxidation of the tissues takes place. Under certain conditions the green of the leaf changes to red. Under different aspects it takes on a yellow or brown hue. The difference in color Is due to the difference in combinations of the original constituents of the green tissues and to the varying condition of climate, exposure and soil. Maples and oaks have the brightest color.
