PUBLICATIONS AND REPORTS
MEETING PAPERS PRESENTED
American Physical Society
June 14-16, 1951, Schenectady, N. Y.
F. Bitter: Optical and Radio Frequency Double Resonance
N. H. Frank: Periodic Deviations of Thermionic Emission from the
Schottky Law: Theory
B. V. Gokhale, H. R. Johnson, M. W. P. Strandberg: Interaction of Electronic States with the Rotation Spectrum
AIEE-IRE Annual Conference on Electronic Devices,
June 21-22, 1951, Durham, N. H.
L. J. Chu: Analysis of Beam-Type Tubes
L. D. Smullin: Propagation of Disturbances in One-Dimensional
Accelerated Electron Streams
IRE Western Convention
August 22-24, 1951, San Francisco, Calif.
R. M. Fano: The Performance of Communication Systems in the
Presence of Noise
Mexican Scientific Congress, 400th Anniversary of the
National University of Mexico
September, 1951, Mexico City, Mexico
M. V. Cerrillo: On Some Existence Theorems of Solutions in the
Theory of Network Synthesis
JOURNAL ARTICLES ACCEPTED FOR PUBLICATION
S. C. Brown: High Frequency Gas Discharge Breakdown
(Proc. I.R.E.)
R. P. Cavileer: Reduction in Starting Time of Collins Helium
Cryostat (R.S.I. Laboratory and Shop Notes)
R. H. Kingston: Spectroscopy of the Solid State: Potassium and
Calcium (Phys. Rev.)
J. C. Simons, Jr., J. C. Slater: Electromagnetic Resonance
Behavior of a Confocal Spheroidal Cavity System in the Microwave Region (J. A. P. )

LETTERS TO THE EDITOR ACCEPTED FOR PUBLICATION
E. R. Piore, R. H. Kingston, E. M. Gyorgy, G. G. Harvey: Soft
X-Ray Spectroscopy of Solids (R.S.I. 22, 543, 1951)
M. Tinkham, A. F. Kip: Paramagnetic Resonance Absorption
Crystals Containing Color Centers (Phys. Rev.)
L. Tisza: On the Nature of the Superconducting State
(Phys. Rev.)
TECHNICAL REPORTS PUBLISHED
(The technical reports listed here may be obtained from the Document Office, 20-B-221, Research Laboratory of Electronics, Massachusetts Institute of Technology,
Cambridge 39, Massachusetts)
No. 42 J. Granlund: Interference in Frequency-Modulation
Reception
No. 122 T. P. Cheatham, Jr.: An Electronic Correlator
No. 168 E. E. David, Jr.: Transient Starting of a Magnetron as Described by the Inhomogeneous Van der Pol Equation
No. 183 M. T. Weiss, M. W. P. Strandberg: The Microwave
Spectra of the Deutero-Ammonias
No. 184 J. R. Eshbach, M. W. P. Strandberg: Rotational Magnetic
1
Moments of EMolecules
No. 187 J. Jensen: Subcarrier Modulation of a Reflex Klystron
No. 188 K. A. Sawyer, J. D. Kierstead: Extension of the Microwave
Spectrum of NHD
2
SPECIAL PUBLICATION
Tube Laboratory Manual, compiled by F. Rosebury
-xi-