TY - JOUR T1 - The Analysis of Sound. Part I. The Experimental Analysis of Sound in Air and Water: Some Experiments towards a Sound Spectrum. Part II. The Theory of Analysis of an Electric Current by Periodic Interruption JF - Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Math. or Phys. Character (1896-1934) VL - 222 SP - 131 EP - 166 PY - 1922/01/01/ UR - http://dx.doi.org/10.1098/rsta.1922.0005 M3 - doi:10.1098/rsta.1922.0005 AU - Barlow, G. AU - Keene, H. AU - Barlow, G. ER -