Sea Lawyer: A shark (Yes, really! This reminds me of an anecdote that I posted about a while back. Who knew lawyer jokes had such a long and distinguished history? )
Coming! So is Christmas: Said of a person who has long been called, and at length answers, Coming! (We use this all the time in my family, so it totally tickled me to find it here.)
Birth-day Suit: He was in his birth-day suit, that is, stark naked. (Okay, this one totally surprised me—it just doesn’t sound old, does it?)
Black and White: In writing. I have it in black and white; I have written evidence. (Another very modern-sounding expression—maybe because we have a picture in our 21st century heads of 19th century paper being brownish rather than white?)
Kick the bucket: To die. He kicked the bucket one day; he died one day. (I did a little research on the origin of this phrase; the Oxford English Dictionary favors the one which involves pigs to be slaughtered being hung from a beam to allow the blood to drain from the carcass, the beam in question being a trébuchet or buque in French (so presumably a Norman borrowing?)
Bears and Bulls: A bear is one who contracts to deliver a certain quantity or sum of stock in the publics funds, on a future day, and at stated price; or, in other words, sells what he has not got, like the huntsman in the fable, who sold the bear’s skin before the bear was killed. As the bear sells the stock he is not possessed of, so the bull purchases what he has not money to pay for; but in case of any alteration in the price agreed on, either party pays or receives the difference. (Wow, who knew? It looks like the terms date from as much as a century before, tied up with the South Sea Bubble incident of ca. 1717.)
All right!: A favourite expression among thieves, to signify that all is as they wish, or proper for their purpose.
And the cool thing is you can find Cranford for free on-line, at both Amazon and Barnes and Noble as well as at Project Gutenberg.