iv Preface. 



many references previously overlooked, contains too many errors 

 to be of much scientific service. 



The present work, which aims at offering a more exact cata- 

 logue than its predecessors, is based upon the Bibliography in 

 the Challenger Report, already referred to ; but in every case the 

 original papers (except when noted " not seen ") have been con- 

 sulted, and where necessary, the entries have been enlarged or 

 amended. The publications enumerated are arranged under the 

 names of the authors in alphabetical order, that being in practice 

 the most convenient and useful method. A brief explanatory 

 note has in many instances been appended in brackets to the 

 entries, and it is hoped that this will avoid waste of time in 

 making references to papers of little or doubtful value. I have 

 acted on Mr. Brady's view, that it is "not . . . requisite to include 

 the title of every geological treatise in which the mere occurrence 

 ot a Nummulitic rock or a Fusulina-limestone happens to be 

 recorded"; nevertheless, I have been careful to examine every 

 paper of this kind noticed by other compilers, and have accepted 

 or rejected it according to its value from a geographical or geo- 

 logical aspect. 



Only the more important papers on Eozoon are included, the 

 publication of a complete bibliography of this curious structure 

 being promised shortly by those especially interested in the 

 subject. The literature of certain other organisms, classed occa- 

 sionally in times past with the Foraminifera, such as Dactylopora, 

 Receptaculites^ and ArchcBocyatlms, is omitted from this list in ac- 

 cordance with modern views as to their affinities, except in those 

 instances where the papers recorded expressly discuss their 

 possible foraminiferal nature. 



Many papers of interesting character or scientific importance 

 are now recorded for the first time. To the former category 

 belong — Camerarius' papers, 1712, 1717; Klein's, 1754; 

 Schroeter's, 1803 ; and Wulfen's, 1791 ; the correction of the 

 hitherto inaccurate references to Spengler's papers ; the original 

 place of publication of Modeer's letter to Soldani ; and Ricca's 



