For this instrument, a chemical analytic balance was modified. A secondary knife edge was added to accommodate length changes in the wire specimen which was held in tension by the two outriggers which were also added at the boom ends. One of the more interesting studies involved the addition of a solenoid to surround an iron wire sample. Following demagnetization of the sample, a variety of unexpected behaviors were noted. The decay of the system in one case was according to a linear rather than logarithmic decrement. Sometimes bistable changes in length could also be stimulated.