Paper, 'The action of gravity upon Bacterium Zopfii' by Rubert William Boyce and A Ernest Evans

Description

The authors write: 'In May, 1892, Mr Walter Spencer handed over to us the body of a cat in which he had discovered a double otitis media. Some of the pus was immediately inoculated upon gelatine, and two days later it was seen that the gelatine along the streak had liquefied, whilst the rest of the surface of the non-liquefied gelatine was covered by a regular growth of delicate white filaments. Re-inoculation proved the presence of more than one micro-organism, hut we soon succeeded in isolating one which did not liquefy the gelatine, and which presented the exceedingly characteristic feather-like appearance well known to belong to Bacterium Zopfii.'

Annotations in pencil and ink. Includes six plates of microphotography.

Subject: Physics / Biology

Received 7 February 1893 / 26 June 1893. Read 7 February 1893. Communicated by Victor Horsley.

A version of this paper was published in volume 54 of the Proceedings of the Royal Society as 'The action of gravity upon Bacterium Zopfii'.

Reference number

PP/22/21

Earliest possible date

1893

Physical description

Ink and graphite pencil on paper

Page extent

23 pages

Format

Typescript
Photograph