2 Gen. Sub. 
I. GENERAL SUBJECTS. 
INTRODUCTION. 
This Record includes under “General Subjects” a wide selection of works 
of a collective nature as regards the various classes of animals, and of 
works relating to those questions of Biology that are common to the 
various classes adopted by Systematists. Hence it is, in a certain sense, 
supplementary to each of the other seventeen sections that make up this 
Volume. The Table of Contents on p. 1 indicates its scope and method of 
arrangement. But it is only right to point out that a certain amount of 
arbitrariness necessarily occurs in the selection of the works included in it. 
It is obvious that every grade exists between papers that merely describe 
a new species or variety and those that discuss such wide topics as the 
nature of life. The following brief explanation will make the selection 
that has been used, to some extent comprehensible. 
As a rule papers referring to Anatomy or development in man are 
excluded. Of anatomical and physiological papers, only those are included 
that are applied—or are likely very soon to be applied—to the consideration 
of general zoological questions. On the other hand cytology and embryo¬ 
logy are more exhaustively dealt with. And a selection is made of papers 
that, though dealing with only one class of animals, do so in a manner 
that appears to the Recorder to be of general interest. 
The arrangement made use of by Professor Thomson has been con¬ 
tinued except that the old Section 9 has been amalgamated with Section I. 
Sections V and VI should probably also be united under the heading 
of Cytology. But as this department of Zoology is undergoing very rapid 
development, and much uncertainty still prevails as to its dominant 
features, it is perhaps advisable to leave the old arrangement at present 
undisturbed. 
I.—TITLES.* 
Regeln der Zoologischen Nomenklatur nach den Beschlussen des v. 
internationalen Zoologen-Congresses. [Also in French and English.] 
Verh. Congr. Zool. v, pp. 927-972. 
1. Abel, M. Beitrage zur Kenntniss der Regenerationsvorgange bei den 
limicolen Oligochciten. Zeitschr. wiss. Zool. Ixxiii, pp. 1-74, pis. i-iii. 
Summary, J. R. Micr. Soc. 1903, p. 179. 
2. Adams, C. C. South-eastern United States as a centre of geographical 
distribution of flora and fauna. Biol. Bull, iii, pp. 115-131. 
3. Adelung, N. v. Erwiderung auf die “Vorschlage zur Minderung der 
wissenschaftlichen Sprachverwirrung” (Fick, Anat. Anz. xx, p. 462). 
Zool. Anz. xxv, pp. 649-652. 
4. Adlerz, G. Periodische Massenvermehrung als Evolutionsfaktor. 
Biol. Centrbl. xxii, pp. 108-119. 
5. Aflalo, G. F. Some private Zoos. Rep. Smithson. Inst. 1901, pp. 
689-696, vii pis. 
* An asterisk prefixed to a quotation indicates throughout the volume that the 
Recorder bas not seen the Journal or Work referred to. 
