The hydroxy derivatives of the higher fatty acids are of interest from many standpoints. Such compounds have been found in the waxes of certain conifers such as Juniperus sabina, Juniperus communis, Picea excelsa, Pinus silvestris, Thuja occidentalis. 2 They have been found in carnauba wax, 3 in certain resins long used medicinally as purgative^,^ in~ ochineal,~ in wool fat, 6 in brain tissue'and humus. 8 More recently they have been ...
