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Article Contents

TITLE PAGE

1.INTRODUCTION

2. MOLECULAR MASS DETERMINATIONS
2.1. Theoretical Basis
2.2. Empirical Basis

3. RADIAL DISTRIBUTIONS IN SPIRAL GALAXIES
3.1. Unbarred Spiral Galaxies
3.2. Barred Spiral Galaxies
3.3. 13CO Observations of Galaxies

4. SPIRAL STRUCTURE IN M51

5. LOCAL GROUP GALAXIES

6. GLOBAL H2, HI, AND IR IN GALAXIES
6.1. Total H2 Masses
6.2. Ratio of H2 to HI
6.3. Gas Mass Fractions in Spiral Galaxies
6.4. The Gas-to-Dust Ratio in Spiral Galaxies
6.5. CO-IR Luminosity Correlation

7. STAR FORMATION RATES AND EFFICIENCIES IN GALAXIES
7.1. The Star Formation Efficiency in the Disks of NGC 6946 and M51
7.2. Arm-Interarm Variations

8. GALACTIC INTERACTIONS
8.1. Star Formation Efficiencies
8.2. Interaction Morphology

9. GALACTIC NUCLEI
9.1. M82
9.2. NGC 1068
9.3. Ultraluminous Infrared Galaxies
9.4. Quasars

10.CONCLUSIONS

REFERENCES