THE FINGER TROMOMETER

[1] BEALL CC, 1924, GEN ELECTR REV, V27, P297

[2] The phonelescope [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA AND REVIEW OF SCIENTIFIC INSTRUMENTS, 1922, 6 (03): : 279 - 280

[3] EDWARDS AS, 1941, AM J PSYCHOL, V54, P567

[4] SOMMER R, 1898, Z PSYCHOL, V16, P275

[5] TRAVIS LE, 1929, J EXP PSYCHOL, V12, P523

[1] BEALL CC, 1924, GEN ELECTR REV, V27, P297

[2] The phonelescope [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA AND REVIEW OF SCIENTIFIC INSTRUMENTS, 1922, 6 (03): : 279 - 280

[3] EDWARDS AS, 1941, AM J PSYCHOL, V54, P567

[4] SOMMER R, 1898, Z PSYCHOL, V16, P275

[5] TRAVIS LE, 1929, J EXP PSYCHOL, V12, P523