October 26, 1959
Studying the crystallization of dielectrics at the National Bureau of Standards.
As the specific volume of a specimen is affected by crystallinity, studies involve weighing the sample in silicone oil--a medium of known density.
J. J. Weeks is about to lower the sample, suspended by a wire, into the oil.
28217-1-2386 (figure 13)
Original Caption by Science Service