@misc{indiciaec725a9664751,
  title = {Immune sera; a concise exposition of our present knowledge concerning the constitution and mode of action of antitoxins, agglutinins, hæmolysins, bacteriolysins, precipitins, cytotoxins, and opsonins — Illustration, Page 80},
  year = {1908},
  url = {https://www.biodiversitylibrary.org/page/24267302},
  note = {Source identifier: page-24267302}
}