In the autumn of 1772 Hutchinson refused to call an extra session of the assembly to consider what should be done about the judges. Samuel Adams then devised a scheme by which the towns of Massachusetts could consult with each other and agree upon some common course of action in case of emergencies. For this purpose each town was to appoint a standing committee, and as a great part of their work was necessarily done by letter they were called "committees of correspondence." This was the step that fairly organized the Revolution. It was by far the most important of all the steps that preceded the Declaration of Independence. The committees did their work with great efficiency and the governor had no means of stopping it. They were like an invisible legislature that was always in session and could never be dissolved; and when the old government fell they were able to administer affairs until a new government could be set up. In the spring of 1773 Virginia carried this work of organization a long step further, when Dabney Carr suggested and carried a motion calling for committees of correspondence between the several colonies. From this point it was a comparatively short step to a permanent Continental Congress. It happened that these preparations were made just in time to meet the final act of aggression which brought on the Revolutionary War. The Americans had thus far successfully resisted the Townshend acts and secured the repeal of all the duties except on tea. As for tea they had plenty, but not from England; they smuggled it from Holland in spite of custom-houses and search-warrants. Clearly unless the Americans could be made to buy tea from England and pay the duty on it, the king must own himself defeated. [Sidenote: Tea ships sent by the king, as a challenge.] Since it appeared that they could not be forced into doing this, it remained to be seen if they could be tricked into doing it. A truly ingenious scheme was devised. Tea sent by the East India Company to America had formerly paid a duty in some British port on the way. This duty was now taken off, so that the price of the tea for America might be lowered. The company's tea thus became so cheap that the American merchant could buy a pound of it and pay the threepence duty beside for less than it cost him to smuggle a pound of tea from Holland. It was supposed that the Americans would of course buy the tea which they could get most cheaply, and would thus be beguiled into submission to that principle of taxation which they had hitherto resisted. Ships laden with tea were accordingly sent in the autumn of 1773 to Boston, New York, Philadelphia, and Charleston; and consignees were appointed to receive the tea in each of these towns.