Report on filter-carts and barrack-filters / by E. Nicholson.

Licence: Public Domain Mark

Credit: Report on filter-carts and barrack-filters / by E. Nicholson. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.