[ 33 ] 
■ 
i* 
A section of this pseudo-papilloma reveals an irregularly formed fibrinous 
structure in the meshes of which a few small blood vessels may be seen. 
The tumour is covered by no specially developed epithelium, a single but 
interrupted row of flattened cells more or less representing it. 
In addition to the badly stained fibrinous stroma, there are present a 
few small rather vascular islands of deeply stained cells scattered in the 
centre. These are no doubt connective tissue cells which are not yet 
completely organised. 
No worms or embryos can be noticed anywhere inside this tumour. 
Scars and Wrinklings of the Aorta. 
i 
Although the percentage of healthy as compared to morbid conditions 
of the bullock’s aorta is great (being 38.1), there are often met with old 
scars and wrinklings of the vessel representing tumours and serpiginous 
tracts of worms which have “ shrivelled up.” These occurred in quite 22.6 
per cent, of the cases examined. They present no special points of interest 
beyond the fact that the scars are only slightly depressed and are usually 
white and fibrous. 
Lastly the large long suspending worms so common in the buffalo 
were present in two cases out of 155 bullocks’ aortas examined. In the first 
case one tumour was present; in the second three tumours and worms. 
Being so rare no attempt was made at dissecting the latter, which was pre¬ 
served for museum purposes, but a search for a male worm and embryos in 
the first case gave negative results. It was not possible to trace the history 
of the two bullocks which possessed the buffalo worms within them. 
The Female Worm in Bullock’s Aorta. 
Its total length has never been measured as it is impossible to dissect 
it out completely from the dense tissue of the aorta in which it is closely 
enveloped. Its width is nearly the same throughout, being not much 
greater in the body than at the head end. The following table gives a 
comparison of the male and female worms as found in the buffalo and 
bullock. 
Buffalo 
Length. 
Female 
200 to 300 mm. 
’s Worm. 
Breadth. 
| Head .29 to .30 mm. 
(Body 1.23 to 1.5 mm. 
Bullock’s Worm. 
Length. Breadth. 
(Head .25 to .27 
Over 60 mm.-j mm. 
(Body .330 mm. 
Male | Head .32 mm. 
45 to 50 mm. - 
(Body .34 mm. 
(Head .116 mm. 
42 to 43 mm.- 
(Body .146 mm. 
also in another 
specimen 
(Head .073 mm. 
(Body .175 mm. 
3 
