Which method of preservation did William Hunter contribute to in the field of embalming?

William Hunter is well-known for his contributions to the field of embalming, particularly through the development of the arterial injection method. This technique involves the injection of embalming fluids directly into the circulatory system, specifically through the arteries, which allows for a more thorough preservation of the body by ensuring that the embalming solution reaches all tissues and organs.

This method was significant because it provided a more effective means of preservation compared to earlier techniques. By using arterial injection, the fluids circulate throughout the body, reducing decomposition and enabling the deceased to be displayed for longer periods, which was increasingly requested during Hunter's time.

The other methods mentioned do have historical significance, but William Hunter’s legacy is most specifically tied to the advancement of arterial injection in embalming practices.