Chemical elements CHEMISTRY OF THE ELEMENTS Chemistry inorganic Inorganic chemistry CHEMISTRY OF THE ELEMENTS--HYDROGEN--CHEMICAL PERIODICITY Chemistry, Inorganic Elements MOSSBAUR SPECTROSCOPY Molecular spectroscopy; Nuclear structure; Atomic and Nuclear physics Mossbauer spectroscopy PRINCIPLES OF ATOMIC ORBITLS SPECTROSCOPIC PROPERTIES OF INORGANIC AND ORGANOMETALLIC COMPOUNDS-- A REVIEW OF THE LITERATURE PUBLISHED DURING 1967 SPECTROSCOPIC PROPERTIES OF INORGANIC AND ORGANOMETALLIC COMPOUNDS-- A REVIEW OF THE LITERATURE PUBLISHED DURING 1968