Dear Lilith,

I am afraid I was one of the respondents replying privately, by hitting return
rather than creating a new message. I will not do this again unless I have a
compelling reason for wishing to keep my replies relatively private. I don't
think my contribution was as useful as some of the others so I don't feel it is
worthwhile repeating, but I take your point.
Good Luck with the rat tissues, I reckon that if you can cope with brains you
won't have any problems with rat tissue!
Margaret

Margaret Blount
Colworth House
Unilever Research
Beds
UK
margaret.blount@unilever.com