A number of years ago I remember reading some things about the use of Knox Gelatin as a glue. They were published in a regional journal. My recollection is that it is a "cousin" to hide glue but not as strong. Does anyone have any information about this? I was fitting purfling into an instrument a couple of weeks ago when I realized I was out of hide glue, so I used the Knox Gelatin. I'm much more hesitant however to use it for the bass bar or neck joint.