70 Notices and Analyses. 



these ganglia, occurring in two directions, longitudinally and trans- 

 vei'sely. 

 It win be observed, that this view is in accordance with the principle of 

 M. Serres, who considers tendency to centralization to be one of the 

 laws of organization. 



Sur les Individuf prives de sexe, &c On the Neutrals of the 

 order Hymenoptera, particularly of the genus apis. By M. 

 Treviranus. — Zeitschriftfur Physiologie. III. 220. 



The principal object of this paper is to oppose the opinion first advanced 

 by Schirach, and afterwards developed by the two Hubers — that the 

 working bees are females with abortive or imperfectly developed 

 generative organs. The peculiarities of structure, M. Treviramus 

 remarks, are so great that they cannot possibly be the result of influ- 

 ences "acting after birth, such as sparing or improper food. He 

 considers these peculiarities to be indubitably original. 



Novce Observationes de Entozdis. Original Observations on 

 the Entozoa. By F. C. H. Creplin, with 4to plates. 8vo. 

 Pp. 134. Berlin, 1829. 



This little work contains many detailed observations on intestinal worms, 

 and a multitude of new species. 



Necueil de Figures^ &c. Collection of Figures of Intestinal 

 Worms. By F. G. Van Lidth de Jeude, Professor in the 

 University of Utrecht. Atlas fol. Leyden, 1829. 



The work of M. Lidth is an important acquisition to helminthologists ; 

 it is a collection of lithographic plates, with explanatory text in French. 

 The figures are all copied from Goeze, Schoeffer, Blumenbach, Zeder, 

 Rudolphi, Cuvier, Bremser, Duges, Bauer, Jurine, and Mehlis. One 

 or more species of each genus is figured, of the natural size, and mag- 

 nified when requisite ; the important organs are represented separately ; 

 the anatomy of the different worms is given after the researches of 

 MM. J. Cloquet, Mehlis, Jurine, and Duges. The characters of the 

 orders, genera, and species, figured in the Atlas, are described in 

 detail. The author adopts the five orders of intestinal worms esta- 

 blished by M. Rudolphi, and adds a sixth under the name of anthostoma, 

 formed of cestoidea and cystica, Rud. JBuU. des Sci. Nat. xxi. 186. 



Plantse Asiaticae Rariores ; or, Descriptions and Figures of a 

 select number of unpublished East Indian Plants. By N. Wal- 

 LiCH, M.D. F.R.S. &c. No. IV. Folio. London. Treuttel 

 and WUrtz. 1830. 



The present number terminates the first volume of this truly splendid 

 work, — a monument alike of the science of its estimable author, and 

 of the munificent patronage of the Directors of the East India Com- 

 pany. The number contains, in addition to the usual collection of 

 figures, an interesting preface, and a list of the subscribers. 



A report has reached us, that the ensuing spring has been fixed upon 

 as the period of Dr Wallich's departure ; but we trust that, if it be 



