Literary Notices. 6g 



Streeter, George L. The Structure of the Spinal Cord of the Ostrich. T/ie 

 Aniencan Journal of Anatomy, 1 904, 3, I -27. 



A description of the meninges and the macroscopic and micro- 

 scopic features of the cord ; inchiding noteworthy contributions on 

 thearachnoidea, the relation of the peripheral gHa sheath to the sinus 

 rhomboideus, Reissner's fiber, and the nuclei marginales. Tabulated 

 measurements and a diagram of the cross-section area, in each seg- 

 ment of the cord, of the funiculi ventro-laterales, substantia grisea, 

 and funiculi dorsales. G. e. c. 



Fiirbringer, Max. Morphologische Streilfragen. i. Nervus trochlearis. 2. 

 Rabl's Methode und Behandlung der Extremitatenfrage. Morph. Jahrb., 

 1902, 30, 85-274. 

 Part I (pp. 86-143) is an important contribution to the morphol- 

 ogy of the fourth nerve. It is, in the main, a reply to the criticisms 

 made by Rabl and Dohrn upon the author's theory to account for 

 the dorsal origin and the crossing of the nerve in question : viz. that 

 the superior oblique muscles were originally muscles of the parietal 

 eye, and that with the disappearance of that organ the originally right 

 oblique muscle became associated with tlie left eye, and vice versa. A 

 bibliography of 296 titles. G. e. c. 



Van Gehuchten, A. Considerations sur la structure interne des cellules nerv- 

 euses et sur les connexions anatomiques des neurones. Le Nevruxe, 1904, 

 6, S3-116. 

 The author places great emphasis upon the fact that the anatom- 

 ical independence of neurones, as they are demonstrated by the 

 methods of Golgi and Ehrlich, is the substance of the neurone 

 theory. He considers that, so interpreted, the neurone theory is not 

 contradicted by a single anatomical fact. Intracellular continuity by 

 means of nets and "nervose Grau" as proj^osed by Bethe, Nissl aj.id 

 others is purely hypothetical. Even the auto-regeneration of the ax- 

 one as demonstrated by Bethe, and va.v Gehuchten repeats this ex- 

 periment successfully, affects only our idea of the origin of the neu- 

 rone and does not bear upon the neurone theory proper. While in 

 some nerve cells the fibrillae seem to be independent, in many they 

 clearly anastomose in the dendrite and especially in the perikaryon. 

 This condition refutes Bethe's and Nissl's opposition to the idea of 

 polarity of the nerve cell, and supports the neurone theory. 



g. e. c. 



Van Gehuchten, A. Connexions centrales du noyau de Deiters et des masses 

 grises voisines (Faisceau vestibulo-spinal, Faisceau longitudinal posterieur, 

 Stries meduUaires) . Le Nevraxe, 1904, 5, 19-74- 

 A critical review of recent literature on the subject, and a report 



