Three researchers outside the British experimental hut set up near Ostia to verify the mosquito-malaria theory. Coloured photograph of a pen drawing by A. Terzi, ca. 1900.

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

Three researchers outside the British experimental hut set up near Ostia to verify the mosquito-malaria theory. Coloured photograph of a pen drawing by A. Terzi, ca. 1900. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.