What three cures for warts are suggested in Tom Sawyer?

In Tom Sawyer, Mark Twain suggests three cures for warts:

1. Touch a dead cat to the warts: According to Tom Sawyer's lore, one way to cure warts is to touch a dead cat to them. However, this method is not supported by scientific evidence and could potentially lead to infection.

2. Apply a mixture of hog's lard and sulphur: Another suggested remedy involves mixing hog's lard and sulphur and applying the mixture to the warts. While sulphur does have some antifungal and antibacterial properties, there is no scientific evidence to support its effectiveness in treating warts.

3. Take a dose of blue mass pills: Blue mass pills, also known as mercury pills, were a common remedy for various ailments in the 19th century. They contain mercury, a heavy metal that can be toxic. While mercury has been shown to have some antiviral properties, its use in treating warts is not recommended due to its potential side effects.