Pig powders : an invaluable remedy for keeping pigs free from disease, more especially from swine fever : Directions. One powder to be given every few weeks.
- Date:
- [between 1890 and 1899?]
Licence: Public Domain Mark
Credit: Pig powders : an invaluable remedy for keeping pigs free from disease, more especially from swine fever : Directions. One powder to be given every few weeks. Source: Wellcome Collection.
