Solution of Chloride of Zinc, more commonly known as Sir William Burnett's "Disinfecting Fluid," is a valuable escharotic in destroying the parts of poisoned wounds, such as the bite of a mad dog. It is also very useful in restoring the hair after the scalp has been attacked with ringworm; but its use requires extreme caution, as it is a powerful escharotic. In itch, diluted (one part to thirty-two) with water, it appears to answer very well. _Caution_.--It is a most powerful poison.