The daily morning journal and courier., 1900-08-31
MINE OF IMMENSE WEALTH.
Connecticut's New Industry-No Mort
 Secret Work at it.

Connecticut's New Industry-No More Secret Work at it.
 | A special to the New York Commer-
 cial Advertiser from Long Hill, Trum-
 bull, says:
 There is no longer any mystery
 about the work going on half q mile
 north of this village. It is generally
 known that the new plant IS grinding
 up tungsten ore taken out of the round ! hill and that it is claimed to be worth from s450 to Sd50 a ton. Several thou
 sand tons of ore lie piled beside the
 mill and the owners claim that all they can produce is wanted by Krupp | in Germany, by the English steel
 makers in Sheffield, and by steel fur naces all over the world The annual consumption of this rare material is
 now valued at several million dollars. It was that famous geologist, the late Professor J. D. Dana of Yale, who rec commended the development of this de- posit. It was his opinion that the round hill was once the crater of volcano, as from it he took his cabinet, not only three minerals carrying tungsten-Wolf-
 ram, shee!ite and hubernite-but pieces of pure silcate from a wide vein of quartz; crystals containing topaz and specimens of chlorophane and margara- dite mica and also garnet, blsmuth and several other rare minerals. But the
 largest deposit he found was tungsten,
 vein of which encircles the top of the
 hill, which Is 35 acres in extent and dips
 down into it to unknown depths. This
 interesting deposit is nine miles north
 of Bridgeport.
 It was only few years ago that
 tungsten found it many present uses
 and its great commercial value. The
 story is interesting as told by the gen.
 eral manager of the mine at Long Hill,
 W. R. Hinsdale who has been identi-
 tied many years with improved methods of steel making:
 "A few years ago Krupp was seek ing for something to improve steel, making exhaustive tests. Experiments had already claimed great things for tungsten in it's quality of hardening steel. The secrets of Krupp's works are known to be the best guarded of any manufacturer in the world and for considerable time other manufac- turers were kept wondering as to what caused the great superiority of Krupp's steel Knowledge then only leaked out through finding that Krupp was hay ing the dumps at Cornwall picked over for tungsten, and it was actually being dug up for him out of the cart roads Then the Sheffield steel makers began experimenting with the new alloy, and I to Krupp's.
 The struggle for supremacy between armor plate and projectile is familiar to all, Until recently the Harveyized nickel steel armor plates were invul- nerable. But on the floor of the senate a few weeks ago a member announced that the United States now need fear no navy in the world, because experi- nents just made with a new projectile | by our ordnance officers had resulted In | penetrating clear through a fourteen | inch armor plate. It was a tungsten l steel proJectie Following such results | the Krupp works I understand are now | taking the next step-making tungsten | armor plate. All of Krupp's processes, | except this. are now used in this coun try,
 One of the consulting engineers of the | mine at Long Hill is Professor Adolf | Gurit of Bonn university Germany, whose suggestions as to the method of . the vein have been followed. consulting engineer is Sir Douglas Fox of London, who is author ity on Cornwall mining. A laboratory has been built near the mill and equipped with apparatus. It is in charge of Professor Herbert M. Shilstone, a chemist who has had large experience in tungsten analysis.
 The plant is a model of application of automatic principles and gravitation in milling ore. The Pequonnock river runs through the property at the foot of the hill, furnishing water for steam. A sid ng has been built Into the mill from the Berkshire division of the New York, New Haven and Hartford railroad, which runs up the valley tthe foot of the hill. Altogether the future looks very bright for this new and peculiar industry of the Nutmeg state.