“… this cause would of itself have been enough to cause him injury. That is well illustrated by the decision of this House in Bonnington Castings Ltd. v. Wardlaw [1956] A.C. 613. There the pursuer's disease was caused by an accumulation of noxious dust in his lungs. The dust which he had inhaled over a period came from two sources. The…”
“…of care is proved or admitted, the burden still lies on the plaintiff to prove that such breach caused the injury suffered: Bonnington Castings Ltd. v. Wardlaw [1956] A.C. 613; Wilsher v. Essex Area Health Authority [1988] A.C. 1074. In all cases the primary question is one of fact: did the wrongful act cause the injury? But in cases…”