( «581 ) 
tares ^ the Orifices of the Secretory Dufls of this Glandu- 
loU3 Body are very numerouf, and open into the Vre- 
ihra on all fides, as appeared on opening the Z)rethra^ 
and compreffing this Glandulous Body or Pi^oJiaU^ I faw 
its Secreted Juice ftart out. 
F%. 2, This part of the Urethra l K K L thus inclofed with the 
Profhtes^ being very much contorted or folded, in its 
Natural Situation between the Bladder and the Pe»^, 
when there is no Erection, muft neceflarily be drawn 
out, and becomes ftraight when the Pc^k is Extruded, 
(which 1 (hall (hew by and by happens upon an Eredionj 
by which means this Glandulous Body is neceflarily com- 
preft, and the Siccus Projlatarum (otCGd into the Urethra. 
The ProJiat£ of divers Animals are compreft by Mufcles 
frani'd on purpofe that indole them, as irt Boars, Rams, 
in Men they are compreft by the Mufmli Levatores 
Am. ^ 
At the root of the Penis oi the Opffum we meet w ith 
four Glandulous Veficula M M N N two on each fide, 
which empty themfelves into the Urethra^ and contain a 
. Mucous matter, like that I find in the Glands I lately 
djfcover'd in this part in Men. Thefe VeficuU are not 
only compreft by the thin broad Sphinder Mufcle above 
mentioned, but the Bulbs of the Cavernous Bodies of 
the Penis CC, and Urethra E E, when diftended (in the 
Eteftion of the Penis ) alfo comprefs thefe mucous Bags. 
This comprefljon is effefted in Men by the Tntumefccnce 
^ Pil l of the Bulb of the Cavernous Body of the Urethra^. In 
No iIb ^^^^^^^^5 Rams, Cats, &'C, we find Nature fo follicitous to 
Fwiv-. ^^^ch'^^g^ the contents of the Excretory DuiTts of thefe 
Gland s, that (like the Gizard of Birds) each MucousGIand 
is inclofed Vv^ith a proper Mufcle to comprefs it. 
• The Pe«/.f fell next under my Examination, the Fabrick 
of v/hich appears not left furprizing, than that you met 
with in the Uterus of the Female':^ and in many circum* 
ftances differ d from what I have found in all the Animals 
that 
