Of still greater interest are the institution of the mission to China, and the steps which led to the establishment of the independence of the Sandwich Islands. The sixth volume of this collection contains the instructions given to Mr. Cushing as commissioner to China, and the correspondence between Mr. Webster and Messrs. Richards and Haalilio on behalf of the Sandwich Islands. At any period less crowded with important events the opening of diplomatic relations with China, and the conclusion of a treaty of commerce with that power, would have been deemed occurrences of unusual importance. It certainly reflects great credit on the administration, that it acted with such promptitude and efficiency in seizing this opportunity of multiplying avenues of commercial intercourse. Nor is less praise due to the energy and skill of the negotiator,[29] to whom this novel and important undertaking was confided, and who was able to embark from China, on his return homeward, in six months after his arrival, having in the mean time satisfactorily concluded the treaty. The application of the representatives of the Sandwich Islands to the government of the United States, and the countenance extended to them at Washington, exercised a most salutary and seasonable influence over the destiny of those islands. The British government was promptly made aware of the course pursued by the United States, and was no doubt led, in a considerable degree, by this circumstance, to promise the Hawaiian delegates, on the part of England, to respect the independent neutrality of their government. In the mean time, the British admiral on that station had taken provisional possession of them on behalf of his government, in anticipation of a similar movement which was expected on the part of France. If intelligence of this occurrence had been received in London before the promise above alluded to was given by Lord Aberdeen to Messrs. Richards and Haalilio, it is not impossible that Great Britain might have felt herself warranted in retaining the protectorate of the Hawaiian Islands as an offset for the occupation of Tahiti by the French. As it was, the temporary arrangement of the British admiral was disavowed, and the government restored to the native chief. Among the papers contained in the sixth volume will be found a correspondence between Mr. Webster and the Portuguese Minister, on the subject of duties on Portuguese wines, and a report of great importance on the Sound duties and the Zoll-Verein, topics to which the recent changes in the Germanic system will henceforward impart a greatly increased importance. This brief enumeration will of itself sufficiently show the extensive range of the subjects to which the attention of Mr. Webster was called, during the two years for which he filled the Department of State.