Media type: E-Article Title: Research Notes Contributor: R. W.; Hidy, Muriel E. imprint: Cambridge University Press (CUP), 1947 Published in: The Journal of Economic History Language: English DOI: 10.1017/s0022050700054760 ISSN: 0022-0507; 1471-6372 Keywords: Economics, Econometrics and Finance (miscellaneous) ; Economics and Econometrics ; History Origination: Footnote: