Posted on 04/01/2012 9:40:29 PM PDT by smokingfrog
I’m not familiar with that type of thermometer but
I do know that Nansen bottles for taking water samples
at depth weren’t invented until 1910. Assuming they
could be used to maintain a temp until retrieved
at the surface.
http://oceanexplorer.noaa.gov/library/readings/science/media/thermometers_600.jpg
http://www.19thcenturyscience.org/HMSC/HMSC-Reports/1873-Thomson/PDFpages/0305.pdf
http://www.19thcenturyscience.org/HMSC/HMSC-Reports/1895-Summary/htm/doc.html
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