Planetary nebular carbon-to-oxygen ratios, morphology and evolution

Coronal abundances and their variation

Julia L. R. Saba

River of Life

Marilyn J. Awtry

Year of Creativity - A Seasonal Guide to New Awareness

Brenda Mallon

Determination of hydrocarbon abundances and the strength of eddy mixing in the stratosphere of Neptune

James Bishop

Model stellar atmospheres and real stellar atmospheres and status of the ATLAS12 opacity sampling program and of new programs for Rosseland and for distribution function opacity

Robert L. Kurucz

Relative elemental abundance and heating constraints determined for the solar corona from SERTS measurements

David A. Falconer

Organic molecules in oxygen-rich circumstellar envelopes

S. B. Charnley

Accurate measurements of the local deuterium abundance from HST spectra

J. L. Linsky

Determination of hydrogen abundance in selected lunar soils

Roberta Bustin