THE ORGAN OF JACOBSON IN THE RABBIT. 561 
constituting the median and lateral wall of the organ of Jacob- 
son, I will give here the results of measurements carried out in a 
transverse section through the organ of Jacobson, such as is 
illustrated in fig. 4, viz. at a point where the cartilage of Jacob- 
son forms a complete capsule. 
Thickness of Jacobson’s cartilage at the upper angle. . 056 mm. 
” ” a at the lower angle. ROO 2050 95; 
» Fe is in the middle of the lateral 
wall 0225 4, 
» : . in the middle of the median 
wall. Ost as 
Short transverse diameter, 7.e. across the middle of Jacobson’s 
cartilage capsule, from side to side, inclusive of the thick- 
ness of the cartilage of both the lateral and median wall . 1°295 
Long transverse diameter, z.e. from the upper to the lower 
wall, inclusive of the thickness of the cartilage of both the 
upper and lower angle. wat SUMS 
Thickness of the lower wall of the organ of of acobson, exclu. 
sive of the epithelium lining the lumen . 0°225_,, 
_ a epithelium at the lower sulcus . ‘ feign :, 
* ie lateral wall in about the middle, exclusive of 
the epithelium lining the lumen _.. Fee es 
re os epithelium of the lateral wall . ; » O45 “>, 
z3 Gs gland layer at the lower sulcus . O2on 
- Pes sensory epithelium in about the middle of 
the median wall, at a place where there is 
in it a Jymph- -follicle 0-388 ,, 
ss remainder of the mucosa of the med‘an wall Ubi eee 
Long transverse diameter of the lumen of the organofJacobson 0°45 _,, 
#OHES5 
2? 33 
Short ” ” ” 
The measurements taken from a section such as is illustrated 
in fig. 11 are: 
Thickness of Jacobson’s cartilage in the middle of the lateral 
wall . - 0148 mm, 
” 99 5 in the middle of ‘the median 
wall. sigan, 
t R! * in the middle of the | lower 
wall. OLS. ves 
» ee “ at the extremity of the 
upper labium : Ue a ae ae 
Diameter from the extremity of the median labium to the 
lower wall’of the Sane inclusive of the thickness of this 
latter. a eRab es; 
In a section further back, e 4g: one shown in fig. 7, this dia- 
meter increases to . 5°12 
Diameter from the extremity of the lateral labium to the 
middle of the lower wall of the cartilage, inclusive of the 
thickness of this latter . : 2'2 
Transverse diameter of the opening between the extremity of 
the lateral labium, right across to the middle of the median 
labium of Jacobson’s cartilage . : : s : . O45 
