On Thursday, July 12, 2012 12:22:09 PM UTC-10, Rob H. wrote:
> Its funny, I did not even notice that was a hole. I guess I was thinking
> it was some sort of reflection because I was not expecting to see a hole
> in that type of apparatus. In any case, the hole does not seem to be
> perfectly round, like it was a modification for some specific experiment.
> I still think the original purpose was as a liquid trap.


Yes, the hole does look like it may have been added later, I don't know what
this device is but I sent an email to Gaertner and they replied and said
that they also didn't know.

Modern version of 2605. http://www.clamptitetools.com/
Karl