With habitual gravity and majesty the Queen Mother of the Netherlands returned, last week, to her Summer Palace at Soestdyk, after completing a series of State visits to each of the eleven provinces of Holland. From the Zuider Zee to Zealand loyal Dutchmen had barked gruff cheers. And now good Queen Mother Emma was home in time for a placid celebration of her 70th birthday. Century-old trees, towering above the low, squat Summer Palace, seemed to rustle discreet congratulations to a Queen now almost as venerable and quite as upstanding as they. How much the royal trees have looked upon, and how much she. . . . Princess Emma. Sixty-two was the age of dissolute King Willem III of the Netherlands, justly famed as "The Dutch Don Juan," when in 1879 he married Princess Emma of Waldeck-Pyrmont, who was then 21.