In the further negotiations serious difficulty was encountered on two points only: (1) the proportion of postage to be paid to the companies, and (2) the length of time for which the agreement should be made. The earlier agreement had been for an equal division between the Post Office and the railway companies of the postage paid on all parcels. It was now decided that payment could only be made in respect of parcels actually conveyed by railway. The companies thereupon asked a higher proportion. They anticipated that parcel post traffic would be largely long-distance traffic, involving in many cases transfers on the journey; and although they expected to retain a good deal of the short-distance traffic, they could only achieve this by reducing their rates generally, especially the rates for small parcels. After some higgling, they agreed under protest to accept 55 per cent. of the postage on all such parcels as should be conveyed by railway. They also agreed to the limitation of the duration of the bargain, and the term was fixed at twenty-one years. The agreement was embodied in the Post Office (Parcels) Act of 1882.[409] The companies parties to the arrangement undertook the service of conveying the post parcels from the vehicles of the Postmaster-General at the despatching railway station to the vehicles of the Postmaster-General at the station of destination--that is to say, they undertook all handling of parcel mails on railway stations and transfer to and from trains and from train to train where necessary--in consideration of payment of 55 per cent. of the postage paid on all parcels conveyed by railway for the whole or part of their journey, the Post Office being required to keep a record of the amount of postage paid on every such parcel. The remuneration was to be paid to the Railway Clearing Committee in London, by whom it would be distributed between the various companies. The agreement was to continue for twenty-one years, and thereafter until terminated by either party. The Postmaster-General retained the power of revising the rates of postage, but in the event of such revision the companies might claim revision of the terms of their remuneration (even during the first twenty-one years). In any case, on the termination of the agreement, the statutes governing the conditions under which ordinary mails are conveyed by railway, and the determination of the remuneration of railway companies in respect of such conveyance, were to apply equally to the conveyance of parcel mails by railway.