The sparse literature on Albizia zygia (D. C.) Macbride is briefly reviewed. The nature of the gum particles when in aqueous suspension is discussed. The viscosity of the solutions increases with concentration, but at concentrations greater than 2% the solution gelled. At low concentration (i. e., below 1%) the solutions exhibit ideal Newtonian behavior but above this concentration the solutions exhibit non-Newtonian behavior. The gum behaves like gum ghatti and sodium alginate in its interaction with sodium chloride and magnesium chloride, the viscosity decreasing with increasing concentration of these electrolytes. For Albizia zygia Grade I variety, the viscosity increases with increasing magnesium chloride concentration, reaching a maximum and then falling off at higher magnesium chloride concentrations. The acid gum shows reserve acidity in its interaction with acids.