Show to br be aird forty A whistle that lint enn can in bc heard at aan n distance of 40 miles has just hien in en ron con strutted it i insists of three made inide of 0 bell or bronze and a ar ir d batmen ell avio discs of steel the iba mouth of the lie largest ii turned timed upward up ard and the mouth of the lie other two to are re turbid downward dov nard tile the soeum ih it con I 1 etil Q ca I 1 through opt in the aws the hi nrc are tuned to chord and thea harmonie harm RB as accurately as a well tuned timed piano nc file hound tillit ted is not harall OB as oni would expect in that is i audible adi stane butis butia quite soft and low |