Cell length measurements

[Beat]

Dear all
I would like to perform measurements of epidermal cells within the elongation 
zone of grass leaves. I have literature about several different methods (light 

microscopy, replica techniques with cellulose acetat or nail polish, etc.), 
but haven't practised any of them. 
Does anybody have experience with any of these techniques (critical details, 
used chemicals, etc.)?
I appreciate your help.

Thanks 

Beat Reidy

beat.reidy at ipw.agrl.ethz.ch