LITERARY NOTICES. 



Carpenter, F. W. The Development of the Oculomotor Nerve, the Ciliary Ganglion and the Ab- 

 ducent Nerve in the Chick. Bui. AIus. Comp. Zoology, Harvard Col., Vol. 48, No. 2. Jan. 

 1906. 



After a minute description of the adult relations of these nerves in the fowl, 

 the details of development are given, followed by a discussion of the results. The 

 literature is well digested. The two motor nerves in question develop as fibrous 

 processes of neuroblasts which remain within the neural tube. They are followed 

 by "indifferent" cells which migrate out from the medullary tube, accompany 

 the fibrous processes and finally invest them to form the sheath of Schwann. Some 

 of the indifferent cells, however, become directly transformed into cells of the 

 ciliary ganglion. This ganglion contains also other and smaller cells which migrate 

 into it along the ophthalmic branch of the trigeminal nerve from the Gasserian 

 ganglion. The latter are undoubtedly sympathetic in character. The significance 

 of the former group, which comprises the larger part of the ciliary ganglion remains 

 problematical. c. j. H. 



Flechsig, Paul. Einige Bemerkungen iiber die Untersuchungsmethoden der Grosshirninde, insbe- 

 sondere ^es Menschen. Dem Zentralkomitee fiir Hirnforschung vorgelegt. Berichte iiber 

 die Verhandlungen der konigltch Sdchsischen Gesellschaft der IV issenschajten zu Leipzig. 

 Math.-Phys. Bd. 56, pp. 50-104, 177-248. 1904. 



An extended review of the author's own investigations upon the medullated 

 tracts by the embryologic method and an exhaustive critique especially of the works 

 by MoNAKpw and Dejerine with pathologic methods. The results of the two 

 methods are critically compared in many instances. Brief space is given to the 

 purely histologic problem as related to the neurone theory, and to the relation of 

 developing tracts to the external morphology of the brain. G. e. c. 



Sterzi, G. Intorno alia divisione della dura madre dall' endocranio. Monitore zoologico Italiano. 



Vol. 13, pp. 17-22. 1902. 

 Sterzi, G. Recherches sur I'anatomie comparee et sur I'ontogenese des meninges. Archives italiennes 



de Biologic, Vol. 37, pp. 3-15. 1902. Atti del R. Instituto Veneto di Sc, Lett, ed Arti. Vol. 60, 



pp. 1101-1372. 1900-1901. 



A layer of embryonic connective tissue which surrounds the cord first divides 

 to form the internal periosteum of the vertebrae and a meninge primitive. The 

 latter divides later to form the dura mater and an internal layer which subsequently 

 separates into arachnoid and pia. In cyclostomes, fishes and urodeles the meninge 

 primitive alone exists. In Anura, reptiles and birds, there is a dura mater and a 

 meninge secondaire. In mammals, alone, does the latter become difl^erentiated 

 into two distinct membranes. G. e. c. 



Frohlich, Alfred. Beitrag zurKenntnis des intraspinalen Faserverlaufes einzelner hinterer Rucken- 

 markswurzeln. Arheiten am dem Neurologischen Institute an der Wiener Universitdt. Bd. 1 1 

 pp. 378-384. 1904. 



Experimental degeneration in Macacus rhesus, of fifth, sixth, seventh cervical 

 and first and second thoracic dorsal roots of the left side, and of the right, the sixth, 

 seventh and eighth cervical and first thoracic. g. e. c. 



