Paper, 'The ferment-action of bacteria' by Thomas Lauder Brunton and A Macfadyen The authors write: 'In the course of the research the following micro-organisms were used:— 1. Koch’s comma spirillum (Flügge, ‘Die Mikro-organismen,’ Leipzig, 1886, p. 334). 2. Finkler’s comma spirillum (Flügge, ‘Die Mikro-organismen,’ Leipzig, 1886, p. 382). 3. A putrefactive micrococcus. 4. Scurf bacillus (Klein). 5. A bacillus isolated from milk by Dr. Klein, which for convenience we may call the “Welford Bacillus.”' Annotations in pencil and ink. Note on cover reads 'omit pages 1-7 also IX, X. By order H [Herbert] Rix'. Subject: Bacteriology Received 23 March 1889 / 29 July 1889. Read 4 April 1889. A version of this paper was published in volume 46 of the Proceedings of the Royal Society as 'The ferment-action of bacteria'. 1889