The chapman, a sharp clever tradesman, though a countryman, has his pocket-book with him, and in it a copy of his posting-book, so the countrymen call a ledger, where the London tradesman's accounts are copied out; and when the city tradesman has drawn out his account, he takes it to his inn and examines it by his little book, and what is the consequence?
If the city tradesman has omitted any of the bills which the country tradesman has sent him up, he finds it out, and is sure to put him in mind of it.

'Sir,' says he, 'you had a bill from me upon Mr A.G.at such a time, for thirty pounds, and I have your letter that you received the money; but you have omitted it in the account, so that I am not so much in your debt by thirty pounds, as you thought I was.' 'Say you so!' says the city tradesman; 'I cannot think but you must be mistaken.' 'No, no!' says the other, 'I am sure I can't be mistaken, for I have it in my book; besides, I can go to Mr A.G., whom the bill was drawn upon, and there is, to be sure, your own endorsement upon it, and a receipt for the money.' 'Well,' says the citizen, 'I keep my books as exact as any body--I'll look again, and if it be there I shall find it, for I am sure if I had it, it is in my cash-book.' 'Pray do, then,' says the countryman, 'for I am sure I sent it you, and I am sure I can produce the bill, if there be occasion.' Away goes the tradesman to his books, which he pretends he keeps so exact, and examining them over again, he finds the bill for thirty pounds entered fairly, but in his running the whole year over together, as well he might, he had overlooked it, whereas, if his cash-book had been duly posted every week, as it ought to have been, this bill had been regularly placed to account.
But now, observe the difference: the bill for thirty pounds being omitted, was no damage to the country tradesman, because he has an account of it in his book of memorandums, and had it regularly posted in his books at home, whatever the other had, and also was able to bring sufficient proof of the payment; so the London tradesman's omission was no hurt to him.
But the case differs materially in the debtor side of the account; for here the tradesman, who with all his boasts of keeping his books exactly, has yet no ledger, which being, as I have said, duly posted, should show every man's account at one view; and being done every week, left it scarce possible to omit any parcel that was once entered in the day-book or journal--I say, the tradesman keeping no ledger, he looks over his day-book for the whole year past, to draw up the debtor side of his customer's account, and there being a great many parcels, truly he overlooks one or two of them, or suppose but one of them, and gives the chapman the account, in which he sums up his debtor side so much, suppose L136, 10s.: the chapman examining this by his book, as he did the cash, finds two parcels, one L7, 15s., and the other L9, 13s., omitted; so that by his own book his debtor side was L153, 18s.; but being a cunning sharp tradesman, and withal not exceeding honest, 'Well, well,' says he to himself, 'if Mr G.says it is no more than L136, 10s.
what have I to do to contradict him?
it is none of my business to keep his books for him; it is time enough for me to reckon for it when he charges me.' So he goes back to him the next day, and settles accounts with him, pays him the balance in good bills which he brought up with him for that purpose, takes a receipt in full of all accounts and demands to such a day of the month, and the next day comes and looks out another parcel of goods, and so begins an account for the next year, like a current chapman, and has the credit of an extraordinary customer that pays well, and clears his accounts every year; which he had not done had he not seen the advantage, and so strained himself to pay, that he might get a receipt in full of all accounts.
It happens some years after that this city tradesman dies, and his executors finding his accounts difficult to make up, there being no books to be found but a day-book and a cash-book, they get some skilful book-keeper to look into them, who immediately sees that the only way to bring the accounts to a head, is to form a ledger out of the other two, and post every body's account into it from the beginning; for though it were a long way back, there is no other remedy.
In doing this, they come to this mistake, among a great many others of the like kind in other chapmen's accounts; upon this they write to the chapman, and tell him they find him debtor to the estate of the deceased in such a sum of money, and desire him to make payment.
The country shopkeeper huffs them, tells them he always made up accounts with Mr.G., the deceased, once a-year, as he did with all his other chapmen, and that he took his receipt in full of all accounts and demands, upon paying the balance to him at such a time; which receipt he has to show; and that he owes him nothing, or but such a sum, being the account of goods bought since.
The executors finding the mistake, and how it happened, endeavour to convince him of it; but it is all one-he wants no convincing, for he knows at bottom how it is; but being a little of a knave himself, or if you please, not a little, he tells them he cannot enter into the accounts so far back--Mr G.always told him he kept his books very exactly, and he trusted to him; and as he has his receipt in full, and it is so long ago, he can say nothing to it.
From hence they come to quarrel, and the executors threaten him with going to law; but he bids them defiance, and insists upon his receipt in full; and besides that, it is perhaps six years ago, and so he tells them he will plead the statute of limitations upon them; and then adds, that he does not do it avoid a just debt, but to avoid being imposed upon, he not understanding books so well as Mr G.pretended to do; and having balanced accounts so long ago with him, he stands by the balance, and has nothing to say to their mistakes, not he.

So that, in short, not finding any remedy, they are forced to sit down by the loss; and perhaps in the course of twenty years' trade, Mr G.might lose a great many such parcels in the whole; and had much better have kept a ledger; or if he did not know how to keep a ledger himself, had better have hired a book-keeper to have come once a-week, or once a-month, to have posted his day-book for him.
The like misfortune attends the not balancing his cash, a thing which such book-keepers as Mr G.do not think worth their trouble; nor do they understand the benefit of it.

The particulars, indeed, of this article are tedious, and would be too long for a chapter; but certainly they that know any thing of the use of keeping an exact cash-book, know that, without it, a tradesman can never be thoroughly satisfied either of his own not committing mistakes, or of any people cheating him, I mean servants, or sons, or whoever is the first about him.
What I call balancing his cash-book, is, first, the casting up daily, or weekly, or monthly, his receipts and payments, and then seeing what money is left in hand, or, as the usual expression of the tradesman is, what money is in cash; secondly, the examining his money, telling it over, and seeing how much he has in his chest or bags, and then seeing if it agrees with the balance of his book, that what is, and what should be, correspond.
And here let me give tradesmen a caution or two.
1.

Never sit down satisfied with an error in the cash; that is to say, with a difference between the money really in the cash, and the balance in the book; for if they do not agree, there must be a mistake somewhere, and while there is a mistake in the cash, the tradesman cannot, at least he ought not to be, easy.