What 3 things does Jack think that the boys should hunt in Chapter 7?

Meat and the Beastie....

Thegroundwasturnedovernearthepig-runandthereweredroppings that steamed. Jack bent down to them as though he loved them. “Ralph—we need meat even if we are hunting the other thing.”

Robert might possibly be next.

All at once, Robert was screaming and struggling with the strength of frenzy. Jack had him by the hair and was brandishing his knife. Behind him was Roger, fighting to get close. The chant rose ritually, as at the last moment of a dance or a hunt.

“Kill the pig! Cut his throat! Kill the pig! Bash him in!”