1876 TYNDALL, John (1820 – 1893)

The optical deportment of the atmosphere in relation to the phenomena of putrefaction and infection.

Tyndall observed the selective bacteria-inhibiting effect of Penicillium and the resistance of Ps. pyocyanea to it. See No. 2495.

GMN 1932 · https://historyofmedicine.com/id/2765

1882 GESSARD, Carle (1850 – 1925)

Sur les colorations bleue et verte des linges à pansements.

Isolation of Pseudomonas aeruginosa (Ps. pyocyanea).

GMN 2497 · https://historyofmedicine.com/id/3173

1889 EMMERICH, Rudolf (1852 – 1914); LÖW, Oscar [Loew] (1844 – 1941)

Bakteriolytische Enzyme als Ursache der erworbenen Immunität und die Heilung von Infectionskrankheiten durch dieselben.

Emmerich and Löw prepared a water-soluble antibiotic substance, pyocyanase, from Pseudomonas pyocanea. It inhibited pathogenic cocci and the organisms responsible for diphtheria, plague, cholera, and typhoid.

GMN 1932.2 · https://historyofmedicine.com/id/2768