886 HEWITT G. FLETCHER, JR., AND C. S. HUDSON ... [COKTRIBUTION FROM THE LABORATORY OF CHEMISTRY AND CHEMOTHERAPY, EXPERIXENTAL BIOLOGY AND MEDICINE INSTITUTE, NATIONAL INSTITUTES OF HEALTH] The Synthesis of 1,5 :3,6-Dianhydro-D-galactitol (D-Neogalactide) ... BY HEWITT G. FLETCHER, JR., AND C. S. HUDSON ... While various optically active dianhydrides of glucitol, mannitol2 and iditolS have been reported in the literature ...