Stubbins Ffirth / 斯塔宾斯·福斯

Stubbins Ffirth appears in 68.疯狂实验史：哎！这该死的求知欲… as an extreme Self-Experimentation case. The episode describes him testing whether yellow fever spread person to person by exposing animals, then himself, to patient vomit, bodily fluids, vapor, wounds, eyes, and blood.

The source treats Ffirth as a warning about the gap between personal risk and valid inference. His survival encouraged the conclusion that yellow fever did not spread through direct contact, but the episode notes that mosquito transmission made his negative result partly lucky. That makes his story a case for Experimental Failure As Knowledge and Scientific Self-Correction, not only bravery.

Connections

• 68.疯狂实验史：哎！这该死的求知欲… - source episode.
• Self-Experimentation - direct mode of bodily risk.
• Experimental Failure As Knowledge - wrong or incomplete result that still clarifies later knowledge.
• Scientific Self-Correction - later correction of disease-transmission understanding.
• Observation Before Inference - a negative personal outcome should not be overread as general proof.