TABLE OF CONTENTS. 



Page. 

 Introduction iii 



List of Astronomical Bibliographies vi 



List of Abbreviated Eeferences used in the Index Catalogue viii 



I. Index Catalogue of Books and Memoirs relating to Nebulae and 



Clusters 1 



II. List of Books and Memoirs relating to the Nebula of Orion 68 



III. List of Books and Memoirs relating to the Variable Nebulae 69 



TV. List of Drawings of Nebulae 75 



V. Index to William Herschel's Catalogues of Nebulae and 



Clusters 91 



VI. Index to Messier's Catalogue of Nebulae, etc 110 



