Statistics are the numerical statements of results or facts. Now thousands of individuals and thousands of bodies--families, clans, associations, that accomplish much in this world, go on very well without keeping any record at all of what they do. This is indisputable. On the other hand we shall see that as work is done well and carefully there is an increasing disposition to make and keep a record of results; and as the work extends in scope and complexity, the record, too, becomes more complex. Take, for instance, the record of so apparently simple a transaction as the payment and receipt of money. The individual who has little of it to receive and disburse may go all his life without keeping so much as a cash account, much less a set of books. He may even spend a considerable income in the same way, including the maintenance of a household and the support of a family, and he may, on the whole, do it wisely and well. Yet of two men of the same means, one of whom should conduct his affairs thus, while the other kept a rational system of household and personal accounts, the latter would universally be regarded as pursuing the better course. And as we pass from this to the conduct of a business we recognize that the man who engages in commerce without keeping proper accounts is a fool and courts failure, and that the larger the business and the more widespread the interests, the more complicated and extensive must be the bookkeeping. A large commercial concern may thus employ a special department with a large staff of men simply to keep record of its financial transactions. This is probably the most ancient kind of statistical record and the one whose usefulness is most generally recognized. In like manner another common and useful statistical record--the inventory, or list of articles on hand--although not commonly and regularly taken by the individual, becomes absolutely necessary in the smallest kind of business, and without it the merchant can have absolutely no idea, of whether he is conducting his business at a profit or a loss. When we go on further and examine, the conduct of great commercial or manufacturing concerns we find that the statistical department becomes of increasing importance, the details collected by it multiply and the staff of persons whose sole duty it is to collect and to discuss them may be very considerable. That a great manufacturing company would waste time and money on a task of no value is inconceivable, and there is thus a very strong presumption that statistics are worth something. Even where bodies of men have so little power or corporate action that they cannot collect statistics for themselves, it is generally deemed a proper expenditure of the public money to do so at the common cost, hence governments maintain great census bureaus, whose duty it is not only to count heads every few years but to tell the farmer how much he raises, the merchant how much merchandise he exports, and so on.