FILARIOSIS OF THE SUSPENSORY LIGAMENT. 
261 
patiently repeating these extractions one will obtain the extrem¬ 
ities of the worm, which only are characteristic. 
The thickest threads, which are also the more numerous, 
belong to the body of the female. The tight and sinuous curl¬ 
ing does not allow the removal of long pieces—those are 
ordinarily between 2 and 6 centimetres. We exceptionally 
obtained once a thread 30 centimetres long, without the head 
or tail. 
The male is finer in structure and more white. It forms 
less curls in its length, and its curls are looser ; it yields more 
to the traction and furnishes longer pieces. We have easily 
had some 10 centimetres long; and once got one 15 centi¬ 
metres without either head or tail. 
Method of Study .—It is on the end pieces that the natural 
openings can be studied ; the head and vulva of the female, the 
spicules and tubercles of the anal region of the male. All 
the elements necessary to establish the species may thus be 
studied. To study the internal organization, one must proceed 
by sections, either in making series upon the tendon itself or by 
incisions in celloidine. 
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MACROSCOPIC LESIONS DUE TO THE PARASITE. 
Externally, filariosis of the suspensory ligament can be 
overlooked and escape most minute exploration, while again it 
mav give the impression of the ligament being enlarged to 
various degrees. 
The aspect of the ligament on the amputated leg varies 
much according to the time the parasite has invaded it and the 
importance of the lesions it has produced. The form and color 
of the organ may not be altered. But most often, especially 
where the worms are in numbers, the ligament appears bigger 
than normally, paler in color, and more or less yellow-reddish 
in color. This swelling may involve only a part of the liga¬ 
ment or its entire structure. It may sometimes be twice or even 
three times its normal size. Sometimes the inferior branches 
