In the late 18th century, 2 Scottish doctors, John Aitken and James Jeffray, developed a prototype of the chainsaw—familiar today in the timber industry—for symphysiotomy and the excision of diseased bone.
symphysiotomy being a (no longer practiced) procedure where, during a difficult childbirth, you cut some of the cartilage connecting joints in the pelvis to allow it to widen and allow the baby to pass.
In the late 18th century, 2 Scottish doctors, John Aitken and James Jeffray, developed a prototype of the chainsaw—familiar today in the timber industry—for symphysiotomy and the excision of diseased bone.was it at least
smaller .......????