ABSTRACT
My invitation to participate in this seminar on the Application of Mathematical Techniques to British Economic History was presumably based on my recent work on the economic effects of the innovation of railways in England and Wales between 1840 and 1870 [ 1 ]. That work is too recent for me to engage in any comprehensive revision; too recent, indeed, for me to review the reviewers if there are any reviewers. But this invitation did provide an opportunity for me to pursue some further thoughts, especially some thoughts of a mathematical kind, with reference to the passenger traffic of the railways.
