that interference with traffic resulting from air-raids etc. will not be on a scale in excess of that suffered between January and May of this year, and therefore ignore the effect of the possible return of heavy bombing or the contingency of invasion. 5. Subject to these points and to verification of figures the salient data are as follows:- £ millions. A. Standard revenue (fixed under the Railways Act, 1921). 55.3 B. Existing minimum guarantee 39.4 C. Current net revenues:- Total. Railway shares under existing arrangements (balance to Exchequer).