On the first of February, 1775, the second provincial congress assembled at Cambridge, and they soon issued a solemn address to the people, deprecating a rupture, but counselling preparations for it.[343] It was not then known that Gage had won over Dr. Church, and that through this professing patriot the British headquarters in Boston were informed of the doings of congress. Church's defection encouraged the tories, and on the 6th, handbills appeared in Boston, reminding the patriots of the fate of Wat Tyler.[344] A few days later Cambridge was alarmed by the report that troops were coming out of Boston to disperse them; but the day passed without the proof of it. The Committee of Safety were anxious, for they knew that the other colonies and their friends in England were fearful that the conflict would be precipitated without the consent of congress; and the authority of congress was now so dominant that its cognizance of such measures was essential to the continuance of the sympathy with Massachusetts which now existed. No one at this time was more solicitous for this prudent measure than Joseph Hawley, and no one in Massachusetts had a steadier head. On the 18th Peter Oliver wrote from Boston to London: "Great preparations on both sides for an engagement, and the sooner it comes the better."[345] "Every day, every hour widens the breach!" wrote Warren to Arthur Lee, two days later.[346] Already the provincial congress had conferred on the Committee of Safety (February 9) the power to assemble the militia, and John Thomas and William Heath had been added to the general officers. The committee, on the 21st, had voted to buy supplies for 15,000 men, including twenty hogsheads of rum. On the same day Sam. Adams and Warren signed a letter to the friends of liberty in Canada, and secret messengers were already passing that way. Presently, on the 26th, the impending conflict was once more averted. Colonel David Mason, of Salem, had been commissioned by the Committee of Safety as an engineer, and was now at work in that town mounting some old cannon which had been taken from the French. Gage heard of it, and by his orders a transport appeared at Marblehead, with about 300 men under Lieutenant-Colonel Leslie, who rapidly landed and marched his men to Salem. Their purpose was seasonably divined; the town was aroused, and, in the presence of a mob, the commander thought it safer to turn upon his steps.[347] A British officer, Colonel Smith, with one John Howe, was at about the same time sent out in disguise to scour the country towards Worcester, and pick up news for Gage;[348] and two others, Brown and Bernière, were a few weeks later prowling about Concord.[349] The patriots did not scour for news. It came in like the wind,—now of county meetings, now of drills, now of Colonel Washington's ardor in Virginia, and now of Judge Drayton's charge to the grand jury in Carolina. [Illustration: ROADS OF ROXBURY AND BEYOND.