and with greater certainty. Tabular book-keeping is a device to

achieve one or more of these ends by the substitution of books ruled with numerous columns for the more usual form. The system may be applied either to books of first entry or to ledgers. As applied to books of first-entry it enables the same book to deal conveniently with more than one class of transaction; thus if the trading of a business is divided into several departments, by providing a separate column for the sales of each department it is possible readily to arrive at separate totals for the aggregate sales of each, thus simplifying the preparation of departmental trading accounts. As applied to ledgers, the application of the system may be best described by the aid of the above example (the proceedings of the columns being given only), which shows how a very large number of personal accounts may be recorded upon a single opening of a ledger provided the number of entries to be made against each individual be few.

Another important application of modern methods consists of what may be described as the slip system, which is in many respects a reversion to the method of keeping records upon movable slabs or tablets, as in the Babylonian accounts Slip
system. referred to at the beginning of this article. This system may be applied to books of first-entry, or to ledgers, or to both. As applied to books of first-entry it aims at so modifying the original record of the transaction—whether it represents an invoice for goods sold or an acknowledgment given for money received—that a facsimile duplicate may be taken of the original entry by the aid of a carbon sheet, which instead of being immovably bound up in a book is capable of being handled separately and placed in any desired order or position, and thus more readily recorded in the ledger. Postings are thus made direct from the original slips, which have been first sorted out into an order convenient for that purpose, and afterwards resorted so that the total sales of each department may be readily computed; after which they are filed away in a form convenient for reference. Sometimes the process is carried a step further, and the original slips, filed away with suitable guide-cards indicating the nature of the account, themselves constitute the ledger record—which in such cases is to be found scattered over a number of sheets, one for each transaction, instead of, as in the case of the ordinary book ledger, a considerable number of transactions being recorded upon a single page. This adaptation of the slip system is impracticable except in cases where the transactions with each individual are few in number, and is not worth adoption unless the exceedingly large number of personal accounts makes it important as far as possible to avoid all duplication of clerical work. The more usual adaptation of the slip system to ledgers is to be found in the employment of card ledgers or loose-leaf ledgers. With card ledgers (fig. 1) each ledger account is upon an independent sheet of cardboard suitably arranged in drawers or cabinets. The system is advantageous as allowing all dead matter to be eliminated from the record continuously in use, and as permitting the order in which the accounts stand to be varied from time to time as convenience dictates, thus (if necessary) enabling the accounts to be always kept in alphabetical order in spite of the addition of new accounts and the dropping out of old ones. An especial convenience of the card system is that in times of pressure any desired number of book-keepers may be simultaneously employed, whereas the maximum number that can be usefully employed upon any bound book is two. The loose-leaf ledger (fig. 2) may be described as midway between card and bound ledgers. It consists of a number of sheets in book form, so bound as to be capable of being readily separated when desired. The loose-leaf ledger thus embraces most of the advantages of the card ledger, while remaining sufficiently like the more old-fashioned book ledger as to enable it to be readily handled by those whose previous experience has been confined to the latter. Both the card and loose-leaf systems will be frequently found of value for records in connexion with cost and stores accounts, quite irrespective of their advantages in connexion with the book-keeping records pure and simple of certain businesses.

All book-keeping methods rest upon the same fundamental principles, but their development in practice in different countries

is to some extent influenced by the manner in which business is there conducted, and by the legislative Legislative
Requirements. requirements imposed by the several states. In France traders are required by the Code of Commerce to keep three books—a journal, an inventory and a letter book, somewhat elaborate provisions being made to identify these books, and to prevent substitution. The compulsory journal makes the employment of numerous books of first-entry impossible without an undesirable amount of duplication, and wherever