Letter, from John Beale to Robert Boyle, dated at Yeovil, Somerset Concerning 'transanimation' or 'the life or soule is in the blood'; blood transfusion of a young person into an old person; case of an 80-year-old man who married a young woman, had children by her, and then felt healthier than before marriage; observations of baroscopes and scales and thermometers; concerning weight of air for a healthy person 31 March 1666