Hairy cell leukemia (HCL) 1  Is a type of blood cancer that begins in the bone marrow. 2  Is a rare type of leukemia in adults.  Hairy cell leukemia gets its name from the short, thin projections that look like hair on its cells.
In 1799 Humphrey Davy discovered anesthetic properties of nitrous oxide (N20)---also known as laughing gas.. He had recently joined Thomas Beddoesâ Pneumatic Institution (established 1798) for treatment of disease by inhalation.
Baron Joseph (1827â1912). Founder of modern antiseptic surgery. Born at Upton, Essex, England, Lister set out in a scientific manner to apply Pasteur's discoveries to the prevention of the development of microorganisms in wounds. His research was on the early stages of inflammation and blood coagulation, and in 1865 he successfully used carbolic acid in the treatment of an open fracture.