NOTICES OF NEW BOOKS. 393 



To some extent this is noticeable in the volume before us, and 

 the defect might have been remedied in the way suggested, 

 namely, by giving references to such works as would supply the 

 missing information. 



The book is divided into a General Part (pp. 1-80) and a 

 Special Part (pp, 83-340), with an Appendix to each, the former 

 relating to the resemblances and differences between plants and 

 animals ; the latter dealing with the Tunicata or Sea-squirts, 

 which were formerly classified with the Mollusca, but are now 

 considered to be related to the Vertebrata, with which they agree 

 in the possession of a notochord, and in the position of the 

 central nervous system. 



The divisions of the " General Part " are Cells and Tissues 

 (Histology) ; Organs ; Fundamental Form and External Con- 

 figuration ; Embryology or Ontogeny; Affinities of Animals; 

 Classification; Doctrine of Descent ; Biology; Geographical and 

 Geological Distribution. 



The " Special Part " deals with the various divisions of the 

 Animal Kingdom, classified as follows: — Subkingdom I. Pro- 

 tozoa, or Unicellular Animals. Subkingdom II. Metazoa, or 

 Multicellular Animals, divided into Coelentera (sic) plus the 

 Sponges ; Echinoderma (sic) ; Platyhelminthia plus the Rotifera ; 

 Nemathelminthia ; Annelida plus the Polyzoa and Brachiopoda ; 

 Arthropoda ; Mollusca ; and Vertebrata plus the Tunicata." 



In the translator's Preface we are told that in the German 

 edition lists of the more important forms belonging to the 

 German fauna are appended to the descriptions of the several 

 groups ; and that these have been replaced by species met with 

 in the British Islands ; the translators expressing a hope that 

 this will be of special service to naturalists. Such lists, no 

 doubt, would have been useful enough had they been more care- 

 fully prepared, but, unfortunately, they are too short, and show 

 omissions of typical and easily procurable species. Nor is the 

 information which is given concerning the species mentioned 

 always correct. For example, under the heading Alcidce (p. 457) 

 we find the following curious blunder: — " Only one species 

 of Auk, the Little Auk, Alca alle, breeds in Great Britain ; the 

 Razorbill, Alca tor da (misprinted tonda), breeds in colder 

 countries, but is occasionally found in the North Sea in winter." 



ZOOLOGIST, THIRD SERIES, VOL. XX. — OCT., 1896. 2 H 



