Text: According to sources Keely used a sublimate in his musical sphere made of the following materials: beeswax - as binding agent? castor oil - forming the negative? lamp black - carbon - forming the neutral? woolen fibers - forming the positive? No information given concerning where in the sphere it was employed or how or for what purpose. It is supposed it was used to create and hold a neutral center with polarization.

See Also:

Source: