CURIOUS CASE OF RING-DROPPING.—Yesterday afternoon, as two respectable young women, named Jane Rothwell and Mary Simpson (who a few weeks ago arrived from Petersfield, hands, on a visit to their friends in the Broadway, Hammersmith), were proceeding along Regent-street, they observed a short man, in a fustian jacket, pass them at a quick pace, and immediately stoop down and pick up a small parcel, at the same time exclaiming to them, "Well, here's something worth finding, I'll warrant!" and, opening the parcel, he exhibited to them its contents, consisting of what to all appearance were a pair of splendid gold ear-rings, a mourning ring, and a wedding ring, which he offered to them for 2l., telling them that he had a wife and six children in a starving state in the country, which was his only reason for disposing of them at so low a price. The ear-rings were wrapped up in a bill of parcels made out for 5l. 18s. 6d. Without hesitation, the unsuspecting females paid the two sovereigns for the jewellery, and were going away well pleased with their bargain, when another man, in a flannel jacket, came up and asked for their address, saying that they had made a good mornings work of it, for a gentleman at Pimlico, who had lost the property, had offered a large reward for his recovery. They then gave him their address, and the man, after promising to send the party to them next day, took his leave. On passing up Oxford-street, they entered the shop of a jeweller, who, on examining the articles at their request, pronounced the whole lot to be worth no more than 2s. 6d. Information of the trick was subsequently given to the D division of police, who are on the look-out for the performers of the nefarious transaction.