Heart transplant from a chimpanzee into a man; unsuccessful. Hardy was expecting the donor heart to be obtained from a relatively young patient dying of brain damage, but the patient went into terminal myocardial failure before a human organ could be obtained. The recipient was a prisoner serving a life sentence for murder; he died 18 days after the operation. Westaby and Bosher, Landmarks in cardiac surgery (Oxford, 1999) 259-260.

The paper has seven co-authors.