Who patented the process of embalming involving the injection of an arsenic and alcohol mixture?

The process of embalming that involves the injection of an arsenic and alcohol mixture is attributed to Jean Gannal. Gannal was a French chemist who is recognized for his significant contributions to the field of embalming in the 19th century. He developed a method that utilized chemicals, which included arsenic, to preserve human remains, making him a pivotal figure in the history of embalming techniques.

Other individuals mentioned have made contributions to the field of science or embalming, but they did not specifically patent this arsenic and alcohol method of embalming. Joseph Henry Clarke is known for his work in the preparation of embalming fluids but does not have the same historical association with arsenic-based methods. J. Anthony Guassardia and Auguste Hoffman are also not recognized for this particular embalming process. Therefore, Jean Gannal is the correct figure related to the specific patent for the use of arsenic and alcohol in embalming practices.