The Ship Captain's Medical Guide is intended primarily for use on ships where no doctor is carried and it is necessary for laymen to assess and treat injuries and to diagnose and treat ill health. The Guide can also be recommended for use in other situations where professional medical advice is not readily available, for example on expeditions. For the 22nd Edition, the Guide has been comprehensively reviewed and updated. It contains a wide range of authoritative advice - from birth to death, from first aid, general nursing, hygiene and the prevention of disease, to the treatment of injuries and diseases. The recommended measures for prevention and treatment can be safely carried out by an intelligent layman.