310 DR. E. KLEIN. 



ditions to obtain as I described of the organ in the rabbit. 

 The minute nerve branches njentioned above as ascending 

 into the sensory epithelium become connected by their 

 fibrils with the inner processes of the sensory cells (see 

 fig. 12 of Plate XXXI, in the October number, 1881, of 

 this Journal). 



Nearer to the cartilage of Jacobson, and in an upward 

 direction, we meet with some larger vessels running longi- 

 tudinally and surrounded by bundles of non-striped muscle, 

 and these vessels appear to me to be the only thing that 

 can be interpreted as a rudiment of a cavernous tissue, such 

 as is present in the lateral wall of the organ in the guinea- 

 pig and rabbit. 



The large branches of the olfactory nerve running longi- 

 tudinally are also met with in this outer layer of loose 

 tissue. Numerous fine elastic fibrils running parallel with 

 the long axis of the organ are met with in all parts of the 

 median wall. 



In the upper portion of the median wall a few serous 

 glands are occasionally seen, but they and their ducts really 

 belong to the region of the upper sulcus, as is well seen in 



fig- 1^- . 



In sections of hardened preparations there is a finely 



granular precipitate present on the surface of the sensory 



epithelium ; this is probably coagulated secretion of the 



gland that had been poured into the cavity of the organ. 



