What types of punishments were inflicted on black female slaves?

They had to go out into the fields and work from Dawn to Dusk. At times they got much worst like beatings. There's been one report were one was held up by her thumbs with string, and beaten. Then another one:13 year old girl was told to get naked and get on all fours sometimes with her head hung low and was beaten till she froth at the mouth. Sad and unfortunate.