Hi Histonetters,

Thank you  Thank you  for the soil aggregate info.
Now on to the next thing: I had put bird air sacs in JB4 plastic (the H&E's 
were beautiful) and the researcher wants to do smooth muscle actin 
staining. I told him to call Polysciences but is any one familiar with this 
procedure?

Thanks again for all the pearls of wisdom.
Mary Lou