RE: [Histonet] kids and histology

From:"Barry R Rittman"

It is trivia like this that my wife says that I worry about too much!!
Can use any root from any fast growing plant but onion is used because
it is continuing tradition and if you leave onions in the pantry too
long they will develop roots. Using a bulb, it is easy to place the bulb
suspended on the opening of a jar filled with water and harvest growing
roots as needed.
Perhaps the supply of onion root tips could be the start of a new
cottage industry? 

-----Original Message-----
From: Marshall Terry Dr, Consultant Histopathologist
Sent: Friday, June 18, 2004 8:35 AM
To: Barry R Rittman;
Subject: RE: [Histonet] kids and histology

I've always wondered, "why onion?".

Dr Terry L Marshall, B.A.(Law), M.B.,Ch.B.,F.R.C.Path  Consultant
Pathologist  Rotherham General Hospital  South Yorkshire  England

-----Original Message-----
From: Barry R Rittman []
Sent: 18 June 2004 14:29
Subject: RE: [Histonet] kids and histology

I would also recommend these, at least as a first step.
It has the advantage of being simple and rapid.
We used Q-tips to rub the inside of the cheek, smeared this on a slide.
Either fix with alcohol or just dry. Stain with dilute toluidine blue
for a minutes or so, rinse and dry. While it is preferable to use
immersion oil, a lot of details can be seen just using dried sections.
Kids can see their own cells, many with nuclei and also bacteria on the
surface of the cells. 
All you have to do is explain the kid's blue finger tips to the parents.
If you want to explain cell division, we used to show them sections of
onion root tips stained with either Heidenhain's iron hematoxylin or
Feulgen. Barry

-----Original Message-----
[] On Behalf Of
Sent: Thursday, June 17, 2004 9:38 PM
Subject: Re: [Histonet] kids and histology

I don't know if this would be feasible in a job fair, but I 
remember in grade school we did a science project involving 
putting our cheek cells on slides and comparing them to onion 
sections on slides. I thought it was fun at least. :-)
"You are a child of the universe, no less than the trees and the 
You have a right to be here and whether or not it is clear to you, 
no doubt the universe is unfolding as it should. Therefore be at 
peace with G-d, whatever you conceive Him to be. And whatever your 
labors and aspirations,in the noisy confusion of life, keep peace 
in your soul.-Max Ehrmann,"Desiderata"

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