Which author discussed the permanence and uniqueness of friction ridge skin in "The Tragedy of Pudd'n Head Wilson"?

The correct answer is Samuel Langhorne Clemens, who is better known by his pen name, Mark Twain. In "The Tragedy of Pudd'nhead Wilson," he explores themes of identity and the permanence and uniqueness of friction ridge skin, which refers to the distinctive patterns found on fingertips. This discussion is significant as it highlights the idea that fingerprints can be used to uniquely identify individuals, reflecting on societal issues of identity and classification.

Other authors listed have their contributions in various fields, such as Sir Francis Galton, who is recognized for his pioneering work in fingerprinting and statistics, but did not address the topic within the context of literary works. Meanwhile, Rene Forgeot and Dr. Arthur Kollmann may have explored related topics within the forensic science realm, yet their works are not linked to the specific discussion present in Clemens' novel. Thus, Clemens stands out as the author who effectively integrates the concepts of fingerprints into a narrative examination of identity.