REFERENCES
1.
We maintained the chamber at Hg and saw no appreciable change in the pressure as we passed below the λ point.
2.
3.
The Indium Corporation of America, Utica, New York. Purity 99.97+%. Size 0.06251.
4.
A torque of 10–15 ft lb (as tight as possible with a large size screw driver).
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© 1959 The American Institute of Physics.
1959
The American Institute of Physics
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