MINISTRY 22nd OF WAR TRANSPORT. 1942. -2- APRIL, to seek recoupment of proved loss of carrying capacity. Compensation would be based on a certified statement of mileage run, and would be subject to the operator having taken reasonable precautions to maintain his apparatus in good working order. The difficult questions arising out of the calculation of loss of efficiency will have to be discussed with representatives of commercial undertakings who have had experience of producer gas service; this cannot be effectively done until the principle of compensation on proof of loss is agreed.