Further to Larry Broadmoore's response to Albert de Boer.  I can
recommend the fish glue sold by Bob Arndt of the Arndt Organ Co., Iowa.
I'm using it extensively in a  Wurlitzer Theater Organ restoration and
it's a delight to use.  Seems to have all the good qualities of hot
hide glue and comes ready to apply from a squeeze bottle.  And it
doesn't smell of fish.  Or anything else...

Michael Woolf
Wellington,  New Zealand