double horned Rhinoceros of Sumatra. 5 
inches below the anus. At its origin it was as thick as a 
man's leg, and about two feet and a half long ; the bend in it 
occasions the urine to be discharged backwards. The glans is 
very singular : the opening of the urethra is like the mouth 
of a cup with its brim bending over a little, and is about three 
quarters of an inch in diameter ; the glans here is about half 
an inch in diameter, and continues that thickness for an inch 
and a half ; it is then inserted into another cup like the first, 
but three times as large. The glans afterwards gradually be- 
comes thicker, and at about nine inches from the opening of 
the urethra are placed two bodies on the upper part of the 
glans, very like the nipples of a milch cow, and as large ; 
these become turgid when the penis is erected. The whole 
of this is contained in the prepuce, and may be considered as 
glans. 
From the os pubis arises a strong muscle, which soon be- 
comes tendinous. This tendon is continued along the back, or 
upper part, of the penis ; it is flattened, is about the size of a 
man's little finger, and is inserted into the upper part of the 
glans, near the end. The use of this muscle is to straiten 
the penis. 
On the under side of the penis there are two muscles, anta- 
gonists to the above ; they arise from the os ischium fleshy, 
run along the lower side of the penis, on each side of the cor- 
pus spongiosum, and are inserted fleshy into the lower side of 
the glans. The action of these muscles will draw in the penis, 
and bend it. 
The male has two nipples, like the female, situated between 
the hind legs, they are about half an inch in length, of a py- 
ramidal form, rounded at the end. 
