llig (Ion r.iled. The new 18-Inch tlalhinana torpedo gun, the largest eter bulll In this country, coun-try, hsa been tested at tho Hethlehem steel works to determine the velocity and strength of the gun, aud prated jncessful. Jiolld, ahola weighing a ton rms'tfrcd, After two preliminary shots, the third waa tired with a charge of 300 poinda of powder, and allowed a prea-aure prea-aure of 10,013 pouuda and 1,8 JO feet velocity, while lha fourth allot with tho ssine charge recorded a pressure ot 10,330 pounds and a teloclly of 1,V01 feet. The gun Is Intended for const, de finse. Tho Intentor claims that It trill throw a shell fifteen mllea Uuucolton la used In the charges. The guu la fortvfnur feel long and weighs tlfty.ntno Ions.