448 
PROFESSOR J. STEPHENSON AND PROFESSOR HARU RAM ON THE 
passes across the inner face of the gland in a transverse direction, and in the 
dissection is seen to be attached to the body-wall above not far from the mid-dorsal 
line. The membrane previously noted as covering much of the inner face of the 
gland is continuous with the connective tissue investment of the setal bundle, 
and appears as an expansion of it. 
Many connective tissue strands unite the outer surface of the gland to the 
body-wall. The septa 17/18 and 18/19, however, seem not to be intimately, or at 
any rate not strongly, united to the gland— certainly not on its inner surface, 
which lies against the intestine. 
The vas deferens in its backward course (fig. 7a) passes underneath the last 
portion of the prostatic duct, and then lies posterior to it and on its outer side ; then, 
curving round and being at last directed obliquely forwards, it pierces the body-wall 
behind and to the inner side of the termination of the prostatic duct. The bundle 
of penial setse enters the body-wall to the inner side of both ducts. 
(2) Microscopical Structure of the Gland (fig. 8). 
A section through the glandular portion of the tube shows a thick wall, T8 to 
•20 mm. in thickness, with a narrow lumen of 45 /r, the whole being thus about '40 to 
'45 mm. in diameter. 
The cells of which the glandular mass is composed are largely merely masses of 
pinkish staining (in haematoxylin and eosin preparations) granules ; indeed, the 
appearance might be roughly compared to that of bags or tubes of such granules ; 
in some cases the masses of granules have no definite contour — as if the bags had 
burst. In shape the granular aggregates have a very marked tendency towards 
elongation in a direction radial to the lumen, and many debouch into the lumen by 
a narrow neck ; in some cases the cell, or tube of granules, can be seen stretching 
through the greater part — as much as five-sixths — of the glandular wall. It is not 
difficult to conceive of them all as being radially elongated in this way, and as dis- 
charging into the lumen, other shapes, when found, being due to the way in which 
particular cells have been cut. 
For the most part these cells, if they can still be called such, are fairly distinct 
from each other, and are often separated from each other by clefts, or even by wider 
spaces. In cells such as have just been described a nucleus is absent. Some have, 
with or without the pinkish granules, a quantity of bluish staining matter in their 
interior; pinkish and bluish matter are, however, not very sharply distinct. 
Other cells have a homogeneous or finely granular body, also staining of a pinkish 
or violet colour ; and of these many possess nuclei. These nuclei, which are small 
3 to 4 /Ji in diameter — spherical, and possessing a central chromatic granule, do not 
stand out very sharply, and are perhaps' already beginning to undergo degeneration. 
The two kinds of cells described above make up the main bulk of the gland. The 
layer which surrounds the central lumen consists of — 
