Showing a litter of pigs being fed. The typewritten caption on the reverse reads 'From the stock farm set up by the Sleeping Sickness Service pigs are distributed to the local peasantry. They are bred from British imported stock. Payment is made by handing over a female from the first litter. When weaned the pigs ate [sic] sold to the Agricultural Department for fattening and transported to Lagos, the capital of Nigeria'.