[Histonet] MMA deplasticizing

[Nancy W. Troiano]

I deplastify our MMA slides using Cellosolve, available from Fisher, 
catalog #E181-4 - use two 30 minute room temp soaks to deplastify 5 micron 
thick sections - use under fume hood as fumes are hazardous.  Or, 
alternatively, used two 5 minute soaks in acetone in a fume hood.  We 
follow up both deplastifications with a 5 minute soak in 70% ethanol, 5 
minutes in 40% ethanol then at least 5 minutes in distilled water prior to 
staining.