Subject: Re: Echolocation From: Tom Brennan <g_brennantg@xxxxxxxx> Date: Fri, 24 Sep 2010 18:19:55 -0500 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Google Dan Kish. He's got a bibliography on his web site. I think the link may be http://www.worldaccessfortheblind.com Tom Tom Brennan KD5VIJ, CCC-A/SLP web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html