“…Furthermore, this table indicates that the amount of conducting material formed is a critical function of the metal present and the time of contact, which can lead only to the conclusion that the chlorinated compounds are very sensitive to the presence of metals. These observations may bear some relation to the work of Race (10) with hydrocarbon impregnante; he showed that in miniature cable specimens electrode metals appear to enter into the deterioration processes, even when the samples are so thoroughly degassed as to leave little possibility for ionization.…”