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Hi Mike,

The search term you're after is "demoslide tubes".

Several of the "usual suspects" of the science supply houses stock
them --- either empty for you to fill, or already filled with living
cultures.

Good luck!



On Thu, Jul 3, 2008 at 12:43 PM, Mike Levad <[log in to unmask]> wrote:

> I was once at Cal Academy and they had a set up that was pretty slick it was
> a tube full of living plankton but the end of it was thin and flat so you
> could observe them under a video microscope.  Does anybody know what these
> things are called.  The search terms I am using just aren't bringing it up.
>
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