Biologist at metro.net
Thu Dec 4 01:23:13 EST 1997
In article <188.8.131.52.19971203084019.00694e6c at mail.trincoll.edu>,
Kathleen.Archer at MAIL.CC.TRINCOLL.EDU (Kathleen Archer) wrote:
> Does anyone have a good method for marking positions on growing leaves?
> I'm planning some simple leaf growth measurement experiments for first year
> students, and every non-water soluble marking pen I have seems to damage
> the tissue (i.e. Sharpie-type pens). Any ideas would be much appreciated.
> Kathleen Archer
I have a 2 inch by 2 inch rubber stamp pad. It marks a grid similar to
graph paper. Students have used it on leaves and as the leaf grows the
grid stretches.....looks great!
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