Denton and Haughton Examiner, etc. — 1881-09-03 (Denton, Greater Manchester, England)

INGENIOUS TELEPHONE RECEIVER. An ingenious telephone receiver (says Dv Meeting) has been devised by Professor A. E. Dolbear, of Tufts College, Ilaseschusetts, United States It is quite distinct from the magneto-telephone of Professor Bell or the electro.chemical receiver of Mr Edison, and resembles more than anything the "speaking condenier," the discovery of • French savant. Dolbear's instrument is, in fact, an articulating air condenser, but it is so neatly contrived as to constitute a novel invention. The receiver is in shape and size like a watch telephone of the Bell order, but it consists merely of an ebonite case enclosing two parallel metal diaphragms insulated from each other by the air and ebonite. The back plate is fixed round its rim and at its centre by a screw which bears upon it, and the front plate is , free to vibrate before it. A bole drilled in the middle of the latter opens into the cavity in the case which is placed against the one. These plates are connected in circuit with the line. The transmitter consists of a Rein telephone, in which the platinum spring contact is replaced by a carbon con's-et—that is to say, a microphone contact— and the vocal current is passed through the primary of an induction coil, which has its secondary in circuit with the line. The secondary currents, after traversing the line, enter the fixed plate of the receiver, and by their a traction on the free plate set it into audible vibra' ion which is heard as speech front elst is r ,Totr 7;1 in be in connection ecessary to conwn ect the body of the listener through the case he will hear the message all the same; sill receivers are made with only one terminal. Dolbon.'s telephone will be exhibited at Paris, and it is said 1., be remarkably free from the extraneous noisev bv..rd in the Bell instrument.  THE MASSACRES IN THE SOUTH SEAS A special reporter was sent out last November by the Sydney Telegrap.ll to report upon the South Sea massacres. He has met returned to Sydney, and gives the following details about the disturbed state of the Wands in the South Pacific We, in the ship Atlantic, I found the whole coast of Guadalcanar dangerous. 1 The natives tried three times to catch us off our guard, and fired at us. As we passed off Langhoe, at Buckatoo Isabel, we were swarmed upon by natives, forty-seven canoes being alongside, and not less than 240 natives being on our deck. In the canoes ware tomahawks, loaded guns, and spears, and money to pay for our heads. The steamer Ripple, Captain Woodhouse, brought news of two more murderous outrages by natives of New Britain. One has resulted in the loss of the German naturalist, Rleinernith, with two Frenchmen of the Marquis de Ray's expedition. The other is a Honolulu' native, who was a trader. Rleinemith went across from his station at the Duke of York, where be left his wife, and, when talking with the natives, wan struck down without a chance for his life. The two unfortunate remnants of the ill-fated French Colonising Organisation shared the same death. Rleinamith was all through the American war. The Honolulu native was named Daniel Hall. He left the ship in the evening, saying that one of the natives had stolen something from him. In the morning news came that he was dead. He was killed almost as soon as he put his foot on shore. Captain Wood hae endeavoured to obtain the body from the natives in order to give it burial, but their thirt for blood and greed for human flesh was greater than their avarice, and hewn eaten."