How do I keep my crayfish antennule cryosections from falling off the microscope slides when I wash them?

My crayfish antennule cryosections keep falling off my Fisherbrand Superfrost Plus Microscope Slides slides when I wash them (when I lay them flat or in coplan jars). I can't use my IHC protocol...

01 January 1970 8,728 3 View