This film illustrates the movement and agglutination of typhoid (2 mins 30 secs) and then cholera bacilli (2 mins 30 secs). Probably one of the earliest surviving film records of bacteriological research. The cultures shown in the footage could originate from the Bombay Plague Laboratory (now the Haffkine Institute). A 35mm negative on nitrate film was donated to the Wellcome Library by the Research Defence Society, although the original provenance of the film and its use are unknown.