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Article Contents

ABSTRACT

1.INTRODUCTION

2.MORPHOLOGY: CLUES TO FORMATION AND EVOLUTION

3.MORPHOLOGICAL CLASSIFICATION: THEORY

4.MORPHOLOGICAL CLASSIFICATION: IN PRACTICE

5.SYSTEMS OF CLASSIFICATION

6.MORPHOLOGICAL CLASSIFICATION: RECENT APPLICATIONS

7.RECENT ADVANCES IN MORPHOLOGY AND NEW CLASSES OF GALAXIES

7.1.Early-type galaxies

7.2.Spiral arm character, multiplicity, and disk resonances

7.3.Amorphous galaxies

7.4.Dwarf and low surface brightness galaxies

7.5.Ringed and lensed galaxies

7.6.Morphology of bars

7.7."Boxy" or "peanut" bulges and "x" galaxies

7.8.Ring, polar ring, and "hoag-type" ring galaxies

8.CONCLUSIONS

REFERENCES