22 THE BELL SYSTEM TECHNICAL JOURNAL, JANUARY 1954 



3. G. S. Burr, Servo-Controlled Tensile Strength Tester, Electronics, May, 1949, 



and E. G. Walsh, Continuously Recorded RelayMeasurements, Bell Lab. Rec- 

 ord, Jan., 1954. 



4. P. P. Cioffi, Recording Fluxmcter of High Accuracj- and Sensitivity, Rev. of 



Sci. Instr., July, 1950. 



5. R. L. Peek, Jr., Analj'sis of Measured Magnetic and Pull Characteristics, page 



79 of this issue. 



6. W. B. Elhvood, A New Magnetomotive Force Gauge, Rev. Sci. Instr., 17, p. 



109, 1946. 



7. W. P. Mason and S. D. White, New Techniques for Measuring Forces and Wear, 



B. S.T. J., May, 1952. 



8. M. A. Logan, Dynamic Measurements on Electromagnetic Devices, B. S. T. J., 



Nov., 1953. 



