68 Journal of Comparative Neurology and Psychology. 



grouped by topics and accompanied by critical annotations on the con- 

 tents of nearly all of the papers cited. Compendious indexes make 

 the whole mass of material instantly available. c. j. h. 



Sfameni, Pasquale. Sulle terminazioni nervose nei genitali femminili esterni 

 e sul loro significato morfologico e funzionale. Archivio dt Ftsiologia, 

 1904, 1, 345-3'^4- 

 In this careful and thorough investigation the author has confined 

 his attention to the nerve terminations iu the clitoris and the vulva. 

 Topographically these are of three classes : (a) Intrapapillar nerve 

 terminations ; (b) nerve terminations iu the reticular layer of the 

 derma ; (c) terminations in the subdermal connective tissue. The 

 first and second of these are by far the most important. All of these 

 terminations reduce to the single type of '"a nervous organ, with or 

 without an envelop of connective tissue, composed of one or more 

 nerve fibers which, after divesting themselves of their myelin sheaths, 

 if they have any, ramify in and around a granular, nucleated sub- 

 stance." 



The nerve corpuscles are not the terminations of the sensory 

 ■neryes but are peripheral ganglia, corresponding to spinal ganglia, 

 and their function is to bring about a more subtle division and modifi- 

 cation of the stimuli. The real terminations are always differentiated 

 ectoderm cells scattered through the epithelium and the superficial 

 layers of the derma, and connected with sensory nerve fibers. There 

 is a bibliography of 46 citations. j. c. bell. 



Harrison, Ross Granville. An Experimental Study of the Relation of the 

 Xervous System to the Developing Musculature in the Embryo of the 

 Frog. The American Journal of Anatomy, 1904, 3, 197-220. 



Observations upon embryos the spinal cord of which had been 

 completely isolated before the appearance of either nerve fibers or 

 contractile substance in the musculature, and upon larvae which were 

 reared in a state of constant narcosis by means of a dilute solution of 

 acetone chloroform. Conclusion: "all of the constructiye processes 

 inyolved in the production of the specific structure and arrangement 

 of the muscle fibers take place independently of stimuli from the 

 nervous system and of the functional activity of the muscles them- 

 selves. G- E. c. 

 Hardesty, Irving. On The Development and Nature of the Neuroglia. The 

 American /ournal of Anatomy, 1904, 3, 229-268. 



A study of pig embryos to demonstrate the syncytial nature of the 

 neuroglia as proposed in the author's earlier paper on the spinal cord 

 of the elephant. .Attention is called to cells resembling the nerve- 

 corpuscles of the peripheral nerve which encircle the medullating ax- 

 ones of the cord. g. e. c. 



