LINEAR SERVO THEORY vii 



Switch, The Gas-Discharge Transmit-Receive, A. L. Samuel, J. W. Clark and W. W. 



Mumjord, page 48. 

 Switches, Spark Gap, for Radar, F. S. Goucher, J. R. Haynes, W. A. Depp and E. J. Ryder, 



page 563. 

 Sj-nthetic Rubber Research, Some Recent Contributions to, C. S. Fuller, page 351. 



Telegraph Methods, Various Carrier, Perfomance Characteristics of, T. A. Jones aiui K. 



IF. P/eger, page 483. 

 Testing, Microwave, High Q Resonant Cavities for, /. G. Wilson, C. W. Schramm and J. P. 



Kinzer, page 408. 

 Testing, Microwave Radar, Techniques and Facilities for, E. I. Green, H. J. Fisher atid J. 



G. Ferguson, page 435. 

 Tinits, W. C. and W . H. C. Higgins, Early Fire-Control Radars for Naval Vessels, page 1. 

 Traffic: A Study of the Delays Encountered by Toll Operators in Obtaining an Idle Trunk, 



S. C. Rappleye, page 539. 



Vacuum Tube: The Magnetron as a Generator of Centimeter Waves, /. B. Fisk, H. D. 



Hagslrum aiui P. L. Harlman, page 167. 

 Vacuum Tubes for Radar Intermediate Frequency Amplifiers, Characteristics of, G. T. 



Ford, page 385. 



W 



Wilson, I. G., C. W. Schramm atuL J. P. Kinzer, High Q Resonant Cavities for Microwave 



Testing, page 408. 

 Wood: A Wood Soil Contact Culture Technique for Laboratory Study of Wood-Destroymg 



Fungi, Wood Decay and Wood Preservation, John Leutritz, Jr., page 102. 



X 



X-Ray Studies of Surface Layers of Crystals, E. J. Armstrong, page 136. 



