[Histonet] How do you get red pulp really red?

[MVaughan4 <@t> ucok.edu]

Hello everyone,
I teach a histology class and often have the students make their own 
slides.
I notice that my very old histology slides have very bright red pulp and 
dark white pulp. I assume they were prepared using H&E staining. I have 
tried but the red is never as bright as the old slides; the hematoxylin 
part is fine however. I use eosin in 70% EtOH.
Any suggestions as to how I can get the red pulp red? 
Thanks, I like perusing the topics.
Mel

Melville B. Vaughan, Ph. D.
Assistant Professor
Department of Biology
University of Central Oklahoma
Edmond, OK 73034