They may be more easily removed by means of slender forceps inserted into the opening of the warbles, and a still more certain method of removing them, particularly if the lumps are still very small, is to cut into the swellings with a sharp knife or Bistoury, after which they may be pressed out.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
If the passage can not be sufficiently opened with the sound it may be incised by the hidden Bistoury.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
I was tempted to see what I could do with a Bistoury, and the girl wanted me to try, but I was afraid of the haemorrhage which might have been dangerous, and I wisely refrained.
"The Memoires of Casanova, Complete The Rare Unabridged London Edition Of 1894, plus An Unpublished Chapter of History, By Arthur Symons"
Jacques Casanova de Seingalt