Water-based searches are also common, with specialist marine magnetometers, side-scan sonar and other acoustic methods and even water-penetrating radar methods used to rapidly scan bottoms of ponds, lakes, rivers and near-shore depositional environments.
12.
Peer, who worked for Okeh at the time, recorded Fiddlin'John Carson using the old acoustic method ( known for its large intrusive sound-gathering horn ) in 1924, at the behest of the Okeh dealer in Atlanta, Georgia, Polk Brockman.
