Previous comparative studies of green, albino, and variegated plants have shown higher levels of soluble nitrogenous compounds and lower levels of protein nitrogen in albino or in variegated than in green tissues (6, 14). The soluble nitrogen level was reduced and the protein level was increased when carbohydrates were supplied to albino tissues and plants. Groner (6), on the basis of such findings, postulated that when the supply of carbohydrate from the endosperm of an albino corn seedling became limiting, the seedling would hydroiyze its proteins, utilizing some of the products of hydrolysis in metabolism. The soluble nitrogenous substances, notably some amino acids, that could not be metabolized were thought to accumulate.