The relations with the Dutch, however, were anything but cordial. On the day after his arrival in April, 1640, Van Langdonk was prevented from passing Fort Nassau. Commander Ridder then prepared his sloop, and went up the stream with a favorable wind. Three cannon balls and a musket bullet were fired across the bows of the vessel from the Dutch stronghold; but Minuit continued his journey. On the twenty-fifth of April he went ashore and delivered some letters to the Hollanders, but was unfavorably received. On May 2, the sloop was sent above the Dutch trading post for the fourth time “to see what they would do.” Jan Jansen, the Dutch commander, again pointed his guns at the vessel and fired a few balls across her course. He also protested against “the intruders”, claiming that the whole river belonged to the Dutch West India Company. Ridder answered the protests, which in turn were followed by Dutch counter protests. Ridder could easily have opposed any attempts of the Dutch to be masters of the river, as Fort Nassau was garrisoned by only about twenty men; but he preferred to follow his instructions and keep on as good terms with them as possible. As the barter with the Indians had been lively during the spring, the ship could be quickly dispatched on its homeward journey with reports, journals, memorials and lists by Van Dyck, the commander and others. Huygen, who had been very successful in his dealings with the aborigines, and who had proved himself an honest and faithful servant of the Swedish crown and company, returned to Sweden to make an oral report. Måns Kling, as well as a number of soldiers, also left the settlement, but the colony was somewhat augmented by the late arrivals, to what extent, however, is unknown. On May 14, 1640, the little colony was again left to take care of itself. The _Kalmar Nyckel_ spread her sails and pointed her prow towards Europe, bearing the blessings and hopes of the lonely pioneers for a safe voyage and speedy return with new supplies and new settlers. The limits of New Sweden were greatly extended in the spring and summer of 1640. It appears that Van Langdonk had instructions to buy land north of the Schuylkill, but he was prevented, as we have seen, from passing the Dutch fort. Ridder was more successful. During a conference with the Indians in April, somewhere south of Trenton Falls, he purchased the land on the west bank of the Delaware from the Schuylkill up to present Trenton (or about forty-miles of river frontage). The purchase price in merchandise and liberal gifts were distributed among the chiefs; the usual ceremonies followed, and four limit-poles were erected, one near the mouth of the Schuylkill, the other three at the upper boundary of the tract. About the same time or a little later Ridder acquired title to a territory south of Duck Creek “from the rightful owner”, the Sachem Wickusi.