Confusions

   Throughout this weeks reading, there were incidences in the reading in which I became downright confused with the meaning of what I was taking in, however I found if I took the time to reread the passage I could usually decpher at least the general meaning. There was a section in which I couldn't figure out the meaning of, no matter how much I thought about it. During the dinner gathering, Uncle Pumblechook states: "You've hit it, sir! Plenty of subjects going about, for them that know how to put salt upon their tails. That's what's wanted. A man needn't go far to find a subject, if he's ready with his salt box...Look at pork alone. There's a subject! If you want a subject, look at pork!" (Page 24, Chapter 4) I don't understand how any of this is relevant to what Mr. Wopsle was previously saying about subjects. My guess is that "salt upon their tails" is some sort of saying used during this time, however I'm not sure. Once he says pork, the conversation shifts to pigs, and they further relate the pig to Pip. I recall earlier that the convict was compared to being a dog, and maybe this human/animal comparison is a motif...