> Head tubes are home-made devices that apparently work quite well measuring
> surface velocity. They are clear plastic tubes (length depending on depth
> of streams to be measured) with a clear plastic sleeve marked in
> millimeters.
Hey, what a clever idea! I don't imagine it would work too well in
sluggish waters, tho'. Where might one find these
diameter/velocity tables?
Prost,
Martin
Jackson, MS
------
It makes me mad when I go to all the trouble of having Marta cook up about
a hundred drumsticks, and the guy at the Marineland says, "You can't throw
chicken to the dolphins. They eat fish." Sure they eat fish, if that's all
you give them. Man, wise up.
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