440 Jnurnal of Coniparaiivc Neurology and Psychology. 



ism V. Uexkull gives accounts of certain experiments which had to 

 do with food taking and various forms of behavior which are appar- 

 ently intelligent, and with the forms of reaction of one, two, three or 

 four armed animals. 



The descriptions of the reactions, which cannot be summarized 

 within the few sentences of this notice, are followed by a consideration 

 of the structure of the animal in its relation to reaction. The mechanics of 

 movement are discussed. In connection with an examination of the 

 principles of action in the nervous system the author takes occa- 

 sion to show that the nerve impulse always passes in the direction of 

 the expanded muscle (]). 28). The paper is a valuable contribution to 

 our knowledge of the workings of the nervous and muscular systems 

 in this form. 



Considering the great possibilities of the kincmatograi)hic method 

 for the investigation of reactions and their reproductions on paper or 

 on a screen, it is surprising that it is not more widely used. Photo- 

 gra})hs taken at the rate of 20 to 30 per second make possible the 

 careful analysis of movements which are too rapid for the naked eye 

 to follow satisfactorily. ^loreover, a series of photographs will often 

 make clear at a glance what pages of descrii)tion may fail to make in- 

 telligible. R. M. v. 



Binet, A. 1/Annec Psycliologi([ue. Tenth year, 1904. Paris, A/assou I'f Cic, 

 Editciiis. 

 The tenth issue of the Aiiuec contains the Bibliography for 1903 

 (about 3000 titles) and the annual abstracts of the more important 

 works. The original memoirs include several of interest to our read- 

 ers, notably the paper by Lecaillon, "I.a biologic et la psychologic 

 d'un araignee" and Zw'aardemaker's "Sur la sensibilite de I'oreille 

 aux differentes hauteurs des sons." Besides these features, we have 

 the announcement of systematic annual digests of cytology, anatomy, 

 physiology, pathology, anthropology and a number of other collateral 

 fields, each by a specialist, which lu'omise to be of great value. Twelve 

 such digests are given in this issue. Attention should be called to 

 the fact that the i)ul:)lisher of the Annt'e has been changed since the 

 last issue. C. j. H. 



Smallwood, W- M. Notes on tlie Natural History of Some of the Nudi- 



hranchs. Ihil!,-liii of Syraciisr Unii'ersilv, Series IV, No. I, pj). 14-17, 

 Oct. I, 1904. 

 Data on the copulation and egti'S. c. j. h. 



