But it was soon perceived that these grievous results, far from prejudicing the theory, really confirmed it; and that the virus, attenuated in its Toxical properties, would prove as effectual as was expected.
"On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment"
Honoré Bourguignon
It has been found that when taken experimentally in varying quantities by healthy provers, many single medicines will produce symptoms precisely according with those of definite recognized maladies; and the same herbs, if administered curatively, in doses sufficiently small to avoid producing their Toxical effects, will speedily and surely restore the patient to health by dispelling the said maladies.
"Herbal Simples Approved for Modern Uses of Cure"
William Thomas Fernie
The leaves smell like celery or parsley, these being most Toxical in summer, and the root in spring.
"Herbal Simples Approved for Modern Uses of Cure"
William Thomas Fernie