Life Insurance in 1872; being a Summary and Analysis of the Accounts of the Life Insurance Companies of Great Britain and Ireland, as now for the first time exhibited by the Returns deposited with the Board of Trade in pursuance of the Life Assurance Companies Act, 1870. By T. B. Sprague, M.A., Vice-President of the Institute of Actuaries. Part I. London: Charles and Edwin Layton, Fleet Street
"Life Insurance in 1872; being a Summary and Analysis of the Accounts of the Life Insurance Companies of Great Britain and Ireland, as now for the first time exhibited by the Returns deposited with the Board of Trade in pursuance of the Life Assurance Companies Act, 1870. By T. B. Sprague, M.A., Vice-President of the Institute of Actuaries. Part I. London: Charles and Edwin Layton, Fleet Street." Journal of the Institute of Actuaries and Assurance Magazine 17.04 (1873) 291-297