S 1 : In the eighteenth century people expected most of their children to die before they were grown up. P: Improvement began at the beginning of the nineteenth century, chiefly owing to vaccination. Q: The general death rate in 1948(10.8) was the lowest ever recorded up to that date. R: In 1920 the infant mortality in England and Wales was 80 per thousand, in 1948 it was 34 per thousand. S: It has continued ever since and is still continuing. S 6 : There is no obvious limit to the improvement of health that can be brought about by medicine. The Proper sequence should be: