This early address by Sprague, who is acknowledged as a telling influence among pre-classical American accounting practitioners and thinkers, previews the insight and sophistication which is set forth in his famous Philosophy of Accounts.
Sprague (1842-1912), Charles E. (Charles Ezra)
"Outlay and income,"
Accounting Historians Journal: Vol. 5
, Article 8.
Available at: https://egrove.olemiss.edu/aah_journal/vol5/iss2/8