Preface 1. Introduction 2. William Herschel's observations and parallel activities 3. John Herschel's Slough observations 4. Discoveries made in parallel with John Herschel's Slough 5. John Herschel at the Cape of Good Hope 6. The time after Herschel's observations till Auwers' list of new nebulae 7. Compiling the General Catalogue 8. Dreyer's first catalogue: the supplement to Herschel's General Catalogue 9. Compilation of the New General Catalogue 356 10. The New General Catalogue: publication, analysis and effects 11. Special topics 12. Summary Appendices Index.
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