Roy B. Kester, Accounting theory and practice… (1922)
“ Because it is unnecessary to write the debit element of cash received and the credit element of cash paid out, a great saving of labor is effected. Nevertheless, it must be remembered that the entry on either side of the cash book is essentially a journal entry, and that the missing elements—cash debit on the left page and cash credit on the right page—are supplied at the end of the period by the totals when the two journals are summarized in preparation for posting to the Cash account in the ledger. ”
