Hi Barbara and Richard,
I too have the same problem as Barbara.
Barabara, Did the new protocol work for you?
Richard, I want to know, how do you do infiltration of araldite? Do you use araldite:acetone 1:1(30 min), 1:4 (30 min), 1:6(overnight) followed by 3 changes of pure arldite hourly.
I am working on hand trimmed specimens so, I infilterate them longer than vibrotome sections.