Various small concessions were made to China. There is to be a revision of the Customs Schedule to bring it to an effective five per cent. The foreign Post Offices are to be abolished, though the Japanese have insisted that a certain number of Japanese should be employed in the Chinese Post Office. They had the effrontery to pretend that they desired this for the sake of the efficiency of the postal service, though the Chinese post is excellent and the Japanese is notoriously one of the worst in the world. The chief use to which the Japanese have put their postal service in China has been the importation of morphia, as they have not allowed the Chinese Customs authorities to examine parcels sent through their Post Office. The development of the Japanese importation of morphia into China, as well as the growth of the poppy in Manchuria, where they have control, has been a very sinister feature of their penetration of China.[84] Of course the Open Door, equality of opportunity, the independence and integrity of China, etc. etc., were reaffirmed at Washington; but these are mere empty phrases devoid of meaning. From the Chinese point of view, the chief achievement at Washington was the Shantung Treaty. Ever since the expulsion by the Germans at the end of 1914, the Japanese had held Kiaochow Bay, which includes the port of Tsingtau; they had stationed troops along the whole extent of the Shantung Railway; and by the treaty following the Twenty-one Demands, they had preferential treatment as regards all industrial undertakings in Shantung. The railway belonged to them by right of conquest, and through it they acquired control of the whole province. When an excuse was needed for increasing the garrison, they supplied arms to brigands, and claimed that their intervention was necessary to suppress the resulting disorder. This state of affairs was legalized by the Treaty of Versailles, to which, however, America and China were not parties. The Washington Conference, therefore, supplied an opportunity of raising the question afresh.