A study of some low frequency applications of silicon capacitors. Internal research.

Mode of access: Internet.

Operator's manual for low voltage circuit testers.

"April 1975."

Very low temperatures, their attainment and uses : a survey of the physical principles underlying the attainment of extremely low temperatures and of their technical and scientific applications, as illustrated in a special exhibition held in the Science museum--March-May, 1936 /

"Chart of fixed points and temperature scales": p. [3] of cover.

Low fare and fare free transit : some recent applications by U.S. transit systems /

Mode of access: Internet.