IV PREFACE 



Exceptions are made in the case of unsigned notes, for 



example, 



OitUum, xii, 158. 



and in that of systematic papers in several parts, or in more 

 than one volume ; here the author, the number of the paper, 

 and the actual reference in the Journal are all given under the 

 name of the subject, thus, 



Actiiiophrys, Archer (25) xvi, 297. 



In the case of reviews, the name of the author of the book is 

 printed in ordinary type, and no subject-references are made. 



Carpenter ; Introduction to the study 

 of the Foraminifera (review), ii, 

 297-301. 



For convenience of reference the subjects have been gene- 

 rally grouped under large heads, such as the names of classes 

 and orders. Thus complete references will be found under 

 the heads — Oligochseta, Polychseta, Polyzoa, Nemertiua, &c. 



To the Proceedings of various Societies recorded in the 

 Journal no reference is made, except in the case of the 

 Dublin ]Microscopical Club, a separate Index to which will 

 be found at the end of the volume. 



With respect to the Quarterly Chronicle of Microscopical 

 Science, subject-references are given only in tlie case of the 

 longer and more important abstracts. 



While genera are almost invariably indexed, a partial excep- 

 tion is made in the case of Diatomacese, a complete catalogue 

 of which is in preparation from another source. Reference is 

 rarely made to species. 



The connection between the '' Quarterly Journal of 

 Microscopical Science ' and the Microscopical Society of 



