author's absthact of this paper issued by 

 the bibliographic service september 11. 



THE PERIPHERAL DISTRIBUTION OF THE NERVUS 

 TERMINALIS IN AN INFANT 



CHARLES BROOKOVER 



FOUR FIGURES 



In recent years the nervus terminalis has been found in all 

 classes of vertebrates, but the literature on its relations and 

 structure in man is rather restricted. De Vries ('05) found a 

 ganglion in human embryos which he suggested as being homol- 

 ogous with the n. terminalis in fishes, the only group of verte- 

 brates in which it had then been found. Dollken ('09) described 

 the ganglion cells along the olfactory nerve in human embryos 

 of 21 mm. length and larger. Johnston ('13) gave an account 

 of it in human fetuses as large as 47 mm. length and ('14) in 

 older fetuses as well as its central root in adults. Contemporan- 

 eously, the author ('14) gave an accouno limited largely to its 

 central relations in adult man. 



The present paper is based on two series of sagittal sections 

 of stillborn negro infants at about full term. The cells have 

 been observed in methylene blue staining of adult material_, 

 also. The following description is based largely on a pyridine 

 silver preparation of the right half of the nose. The modifica- 

 tion of Ranson's method used by Huber and Guild ('13) on the 

 rabbit was employed to permit of the section of the cribriform 

 plate after decalcification. The material was injected with 

 ammoniated alcohol by Dr. D. A. Rhinehart and the later treat- 

 ment and embedding done by Dr. R. C. Dickinson, to both of 

 whom I am greatly indebted. 



The sections were cut 20 micra thick and measured about 35 

 by 20 mm., extending back of the hypophysis cerebri which 

 was useful as an orientation mark in reconstruction. The field 

 being too large to be covered by any of the low power objec- 

 tives at hand, the ocular was removed from the microscope of 



349 



