Title page of Jenner’s groundbreaking ‘Inquiry into the Causes and Effects of the Variolae Vaccinae’, first published in 1798. In it Jenner included case studies and observation drawings to back up his theory that cowpox could be used as a vaccination against smallpox.
Drawing of the cowpox infection of milkmaid Sarah Nelmes. Jenner used puss from the coxpox infection and gave it to James Phipps before giving him the deadly smallpox infection. He survived the smallpox infection with only mild irritation, proving through experiment that vaccination worked.
Left image: Observational drawing of case studies conducted by Jenner on whether a cowpox vaccination would stop the development of smallpox on a 5 year old boy. Middle image: Observational drawing of case studies conducted by Jenner on whether a cowpox vaccination would stop the development of smallpox on a 6 year old boy. Right …
An illustration from Harvey’s ‘Motion of the Heart and Blood in Animals’ illustrating an experiment to show how blood is pumped around the body and that the valves in the veins will only allow the blood to flow in one direction. This disproved Galen who had said the liver created fresh blood.
Title page of William Harvey’s ‘The Anatomical Exercises of Dr William Harvey concerning the motion of the Heart and Blood’. Along with his book entitled On the Motion of the Heart’ he challenged the work of Galen. Through close observation and working on cold blooded amphibians he could see that blood was pumped around the …
Harvey included a letter of dedication to Charles I, King of England in his book The Anatomical Exercises of Willian Harvey concerning the motion of the Heart and Blood, showing the importance of royal patronage in developing new medical theories. Despite being physician to both James I and Charles I many doctors refused to believe …
Chapter III: What manner of motion the Arteries have in dissection of living creatures. In this Chapter, Harvey describes how the arteries ensure that the blood is pumped around the body in one direction.