New York, Nov. 3.
A dispatch from London says: The Dutch police have on hand the solution of one of the most mysterious alleged murder cases of the decade. A young Dutchman, a steward on board one of the steamers plying between Amsterdam and the English ports, is charged with having made away with two girls, one English and the other Dutch, whom he married, and who soon afterward suddenly disappeared.

There are many people both in England and Holland who believe that De Jong, who is in custody in Amsterdam, is the Whitechapel villain known as Jack the Ripper. But in his case no traces of the victims can be discovered, though much of their belongings - their dresses and part of the wedding trousseau of the English girl - have been found and proved to have been sold to the purchasers by De Jong himself. Yet the villain himself keeps up a jaunty air and defies the Dutch magistrate to prove murder against him, saying that his alleged victims are in life and perfectly happy. It has been intimated, indeed, that De Jong may have shipped off his victims to a foreign port for vicious purposes. If he did so, then he could easily prove his innocence of murder. That he does not do so is thought to be present proof of his guilt.