Friez Instrument Division, Bendix Aviation Corporation, May 31, 1944. CP-342-M1 231. Meteorological Investigation at Rye, Instrumental Layout for Recording Gradients of Temperature and Relative Humidity (Part I), Report JMRP-17, Instruments Branch, MO 4, May 1944. CP-344-M3 232. Notes on Operational Use of Low-Level Meteorological Sounding Equipment, K. E. Fitzsimmons, S. T. Stephenson, and Robert W. Bauchman, OEMsr-728, NDRC Research Project PDRC-647, Report 7, Washington State College, June 15, 1944. CP-342-M2 233. Microwave Propagation Studies, Detection of Troposphere Stratification by Means of Sound Echoes, Preliminary Trial, Case 37003, H. B. Coxhead and F. H. Willis, Report MM-44-160-143, BTL, June 21, 1944. CP-344-M4 234. Operating Instructions for the WSC Low-Level Atmospheric Sounding Equipment, Paul A. Anderson, OEMsr728, NDRC Research Project PDRC-647, Report 8, Washington State College, July 10, 1944. CP-342-M3 235. Meteorological Equipment for Short Wave Propagation Studies, Walter M. Elsasser, Report WPG-3, CUDWR August 1944.

236. Wired Sonde Equipment for High Altitude Soundings, Lloyd J. Anderson, BuShips Problem X4-49CD, Report WP-16, NRSL, Nov. 17, 1944. (See reference 238.) CP-341-M2

237. A Note on the Resistance of Electric Hygrometer Elements, Lloyd J. Anderson and S. T. Stephenson, Report AERO-1, NRSL, May 8, 1945. CP-343-M1

238. Improvements in USNRSL Meteorological Sounding Equipment, Lloyd J. Anderson, S. T. Stephenson, and A. P. D. Stokes, BuShips Problem X4-49CD, Report WP-21, NRSL, July 3, 1945. (See reference 236.)

CP-341-M3

239. Forecasting of R. D. F. Conditions, JMRP 2, Memorandum 103, AORG, May 31, 1943. CP-410-M1

240. The Meteorological Aspects of Anomalous Propagation, Short Wave Radio, R. W. Hatcher, Report JMRP 1, [Great Britain] June 1943. CP-410-M2

241. Oboe Propagation, August-October, 1943, H. G. Booker, OSRD WA-1464-5, Report T-1605, TRE, 1943.

CP-422-M1

242. "Naviprop" Forecasts, E. Gold, OSRD WA-2255-1Q, Report SIS 45, MO, Nov. 8, 1943. CP-422-M2 243. Issue of Anoprop Forecasts, Synoptic Instruction Special No. 39, OSRD WA-2255-1R, Report SIS 39, MO, Feb. 11, 1944. CP-422-M3 244. Elements of Radio Meteorological Forecasting, H. G. Booker, Report T-1621, Mathematics Group, TRE, Malvern, Feb. 14, 1944. CP-410-M3

245. Preliminary Instruction Manual, Weather Forecasting for Radar Operations, Report 614, U. S. Army Air Forces, Weather Division, March 1944. CP-410-M4

246. Tropospheric Weather Factors Likely to Affect Superrefraction of VHF-SHF Radio Propagation as Applied to the Tropical West Pacific, E. Dillon Smith and R. D. Fletcher, Report RP-1, U. S. Department of Commerce, Weather Bureau, July 1, 1944. CP-424-M1

247. Preliminary Instruction Manual of Weather Forecasting for Radar Operations in South West Pacific Area, D. F. Martyn and P. Squires, Report RP-220, CSIRRL, Sept. 4, 1944. CP-424-M2 248. Outline of Radio Climatology in India and Vicinity, H. G. Booker, JEIA 6061, Report JMRP-25, Report T-1727 (M/85), TRE, Sept. 12, 1944. CP-423-M1 249. Notes on TRE Report T-1727, JMRP No. 25, Radio Climatology in India and Vicinity, C. S. Durst, JEIA 10324, Report JMRP-27, MO, Nov. 7, 1944. (See reference 248.) CP-423-M2 250. A Rough Sketch of World Radio Climatology over Sea, H. G. Booker, Report T-1730, TRE, Oct. 31, 1944. CP-424-M3 251. American Continents Meteorological Counterparts of Western Pacific and Indian Ocean Areas as Applied to Tropospheric Radio Propagation, J. H. Brown, J. L. Paulhus, and E. Dillon Smith, Report RP-2, U. S. Weather Bureau, Nov. 15, 1944.

252. The Possibility of Investigating the Föhn Wind and Sea
Breeze Phenomena in N. Z. with a View to Elucidating
Certain Problems of Radio-Meteorological Forecasting in
Other Parts of the World, M. A. F. Barnett and F. E. S.
Alexander, JEIA 7469, Report RD-1/471, RDL-DSIR-
NZ, Dec. 1, 1944.
CP-421-M1
253. Determination of a Suitable Method of Forecasting Radar
Propagation Variations over Water, Tests Conducted by
26th Weather Region, Orlando, Florida, J. R. Gerhardt
and William E. Gordon, Service Project 4252R000.77,
U. S. Army Air Forces, Mar. 10, 1945. CP-425-M1
254. A Qualitative Outline of the Radio Climatology of Aus-
tralasia, H. G. Booker, JMRP-53, Report T-1820
(M/95), TRE, Apr. 19, 1945.
CP-421-M2
255. Determination of the Practicability of Forecasting Me-
teorological Effects on Radar Propagation, Tests Con-
ducted by AAF Tactical Center, Orlando, Florida, John
R. Gerhardt and William E. Gordon, Service Project
3767B000.93, U. S. Army Air Forces, June 13, 1945.
CP-425-M2
256. Absorption of 1-Cm Radiation by Rain, M. G. Adam,
R. A. Hull, and C. Hurst, Misc. Report 3, CVD-CL.
257. The Absorption of Ultra-Short Wireless Waves in the
Water Vapour of the Earth's Atmosphere, J. A. Saxton,
OSRD II-5-210, Paper RRB/C-18, NPL, Feb. 14,
1941.
CP-510-M1

258. Echo Intensities and Attenuation Due to Clouds, Rain,
Hail, Sand and Duststorms at Centimeter Wavelengths,
J. W. Ryde, OSRD WA-81-25, Report 7831, GEC,
Oct. 13, 1941.
CP-511-M1

259. The Atmospheric Absorption of Microwaves (in Third Conference Report of CP), J. H. Van Vleck, Report 175 (43-2), RL, Apr. 27, 1942. (See reference 10.)

Div. 14-121.1-M4 260. The Effect of Rain Upon the Propagation of 1-Cm Electro-Magnetic Waves, Case 22098, S. D. Robertson, Report MM-42-160-87, BTL, Aug. 1, 1942. CP-511-M2 261. The Effect of Rain on the Propagation of Microwaves, Case 22098, A. P. King and S. D. Robertson, Report CP-511-M3 MM-42-160-93, BTL, Aug. 26, 1942.

262. Comparison of Theoretical and Experimental Values for the Attenuation of 1-Centimeter Waves in Rain, Case 22098, S. D. Robertson, Report MM-43-160-2, BTL, Jan. 5, 1943. CP-511-M4 263. An Investigation on the Number and Size Distribution of Water Particles in Nature, Josef Mazur, F/Lt. Polish Air Force, OSRD II-5-6306(S), Report MRP-109, Meteorological Research Committee, Great Britain, June 1943. CP-511-M5 264. Report on the Absorption and Refraction of Electro-Magnetic Waves by the Liquid Water, Water Vapour and Fog or Rain, N. F. Mott, OSRD II-5-4936, Reference 43/2881, CP-510-M2 CRB, Sept. 2, 1943. 265. Report on the Absorption of Electromagnetic Waves in the Wavelength Range 1-100 Cm by Water in the Atmosphere, N. F. Mott, OSRD II-5-4937, Reference 43/2882, CRB, Sept. 2, 1943. CP-510-M3 266. Verification of Mie Theory, Calculations and Measurements of Light Scattering by Dielectric Spherical Particles (Progress Report), Victor K. LaMer, OSRD 1857, OEMsr-148, Service Project CWS-1, Division 10, NDRC, Columbia University, Sept. 29, 1943. CP-512-M1

267. The Absorption of Centimetric Radiation by Atmospheric Gases, J. M. Hough, ADRDE, USWP-WC, Apr. 27, 1944. CP-510-M4

268. Attenuation Due to Water Drops in the Atmosphere, J. M. Hough, ADRDE, USWP-WC, Apr. 28, 1944.

CP-511-M6

269. Propagation of K /2 Band Waves, G. E. Mueller, Report MM-44-160-150, BTL, July 3, 1944. CP-511-M7 270. Preliminary Note on Secure Communications on Millimetre Waves, OSRD WA-2868-3, JEIA 5597, Report L/M40/WBL, TRE, Sept. 11, 1944. CP-510-M5

271. Rotational Line Width in the Absorption Spectrum of Atmospheric Water Vapor and Supplement, Arthur Adel, OEMsr-1361, NDRC Division 14 Report 320, University of Michigan, Oct. 10, 1944; Supplement Feb. 1, 1945. CP-510-M6 272. The Absorption of One-Half Centimeter Electromagnetic Waves in Oxygen, E. R. Beringer, OEMsr-262, Service Project AN-25, Division 14 Report 684, RL, Jan. 26, 1945. CP-510-M7

273. The Effect of Rain on Radar Performance, S. C. Hight, Report MM-44-170-50, BTL, Oct. 17, 1944. CP-511-M8 274. Measurements of Wave Propagation, G. E. Mueller, Report MM-45-160-17, BTL, Feb. 5, 1945. CP-511-M9

275. Further Theoretical Investigations on the Atmospheric Absorption of Microwaves, John H. Van Vleck, OEMsr-262, Service Project AN-25, Division 14 Report 664, RL, Mar. 1, 1945. CP-510-M8

276. Measurements of the Attenuation of K-Band Waves by Rain, G. T. Rado, OEMsr-262, Service Project AN-25, Division 14 Report 603, RL, Mar. 7, 1945.

CP-511-M10

277. Attenuation of Centimetre and Millimetre Waves by Rain, Hail, Fogs, and Clouds (Draft), J. W. Ryde and D. Ryde, OSRD WA-5181-10, Report 8670, GEC, May 18, 1945. CP-511-M1

278. The Relation Between Absorption and the Frequency Dependence of Refraction (Fourth Conference), John H. Van Vleck, OEMsr-262, Division 14 Report 735, RL, May 28, 1945. (See reference 12.) Div. 14-122.24-M4 279. Absorption and Scattering of Microwaves by the Atmosphere (Fourth Conference), Louis Goldstein, Report WPG-11, CUDWR, May 1945. (See reference 12.) 280. C.V.D. Progress Report for May, 1945. The Absorption of K-Band Radiation in Gaseous Ammonia (Part I), Progress Report, CVD-CL, May 1945.

281. K-Band Attenuation Due to Rainfall, Lloyd J. Anderson, J. P. Day, C. H. Freres, John B. Smyth, A. P. D. Stokes and L. G. Trolese, Report WP-20, NRSL, June 8, 1945. CP-511-M12 282. A New Method for Measuring Dielectric Constant and Loss in the Range of Centimeter Waves, S. Roberts and Arthur R. von Hippel; Wave Guides with Dielectric Sections, L. J. Chu, Report 102, MIT, March 1941. CP-521-M1 283. The Electrical Properties of Ice, T. A. Taylor and Willis Jackson, OSRD W-126-42, Report AC-1516, RDF 110, Com. 78, RDF, Dec. 22, 1941. CP-522.13-M1 284. The Dielectric Constant and Loss Factor of Water Vapor at a Wavelength of 9 Cm, Frequency 3330 Mc/s, J. A. Saxton, OSRD W-203-2, Paper RRB/S-1, NPL-DSIR Mar. 31, 1942. CP-522.12-M1 285. The Dielectric Constant of Water Vapour and its Effect upon the Propagation of Very Short Waves, A. C. Stickland, OSRD WA-175-7, Paper RRB/S-2, NPL-DSIR, May 11, 1942. CP-522.12-M2 286. Progress Report on Ultrahigh Frequency Dielectrics, Arthur R. von Hippel, OEMsr-191, Division 14 Report 121, MIT, Laboratory for Insulation Research, January 1943. CP-521-M2

287. Conductivities of Sea, Tap and Distilled Water at λ=10 Cm., L. B. Turner, OSRD WA-649-1, Report M-496, ASE, April 1943. CP-522.11-M1 288. The Measurement of Dielectric Constant and Loss with Standing Waves in Coaxial Wave Guides, Arthur R. von Hippel, D. G. Jelatis, and W. B. Westphal, OEMsr191, Division 14, Report 142, MIT, Laboratory for Insulation Research, April 1943. CP-521-M4 289. The Dielectric Constant and Absorption Coefficient of Water Vapour for Wavelengths of 9 Cm and 3.2 Cm, Frequencies 3,330 and 9,350 Mc/s., J. A. Saxton, Paper RRB/S-11, NPL-DSIR, June 14, 1943. CP-522.12-M3 290. "Electrical Measurements on Soil with Alternating Currents," R. L. Smith-Rose, Journal of the Institution of Electrical Engineers (London), NPL, Vol. 75, August 1943, pp. 221-237. CP-522.3-M1 291. Memorandum on an Electrical Method of Measuring the Dielectric Constant of Atmospheric Air, and Recording it Continuously, OSRD WA-1464-7, Report JMRP-8, Report M/Memo-15/PEC, TRE, Jan. 6, 1944.

CP-522.2-M1 292. The Dielectric Constant and Absorption Coefficient of Water Vapour for Radiation of Wavelength 1.6 Cm, Frequency 18,800 Mc/s., J. A. Saxton, Paper RRB/S.17, NPL-DSIR, Apr. 22, 1944.

293. The Dielectric Constant of Water and Ice at Centimetre Wavelengths (Working Committee), J. M. Hough, ADRDE, USWP-WC, Apr. 28, 1944. CP-522.1-M1

294. Preliminary Report on the Dielectric Properties of Water in the K-Band, C. H. Collie, Report CL Misc. 25, CVD, May 1944.

295. Recent Dielectric Constant and Loss Tangent Measurements on X-Band (Radome Bulletin No. 5), Elizabeth M. Everhart, OEMsr-262, Division 14 Report 483-5, RL, July 14, 1944. CP-522.4-M1

Div. 14-234.5-M5

296. Dielectric Properties of Water and Ice at K-Band, E. L. Younker, OEMsr-262, Service Project AN-25, Division 14 Report 644, RL, Dec. 4, 1944. CP-522.1-M2 297. The Interaction Between Electromagnetic Fields and Dielectric Materials, Arthur R. von Hippel and R. G. Breckenridge, OEMsr-191 Division 14 Report 122, MIT, Laboratory for Insulation Research, January, 1943. CP-521-M3 298. The Dielectric Properties of Water at Wavelengths from 2 Cm to 10 Cm and over the Temperature Range 0° to 40° C, J. A. Saxton, OSRD WA-4340-5, Paper RRB/C-115, NPL-DSIR, Mar. 20, 1945. CP-522.11-M2 299. The Dielectric Properties of Water in the Temperature Range 0° C to 40° C for Wavelengths of 1.24 Cm and 1.58 Cm, J. A. Saxton and J. A. Lane, JEIA 9811, Paper RRB/C.116, NPL-DSIR, Mar. 7, 1945.

300. The Anomalous Dispersion of Water at Very High Radio Frequencies in the Temperature Range 0° to 40° C, J. A. Saxton, OSRD WA-4459-8, JEIA 9812, Paper RRB/C118, NPL-DSIR, Apr. 6, 1945. CP-522.11-M3 301. Centimeter Wave Propagation over Sea Within the Optical Range, H. Archer-Thomson, J. C. Dix, F. Hoyle, E. C. S. Megaw, and M. H. L. Pryce, OSRD W-157-16, Report M-398, ASE, January 1942. CP-532.2-M1 302. Preliminary Report on the Reflection of 9-Cm Radiation at the Surface of the Sea, H. Archer-Thomson, N. Brooke, T. Gold, and F. Hoyle, OSRD WA-1131-2, Report M-542, ASE, September 1943. CP-532.2-M2 303. Comment on the Reflection of Microwaves from the Surface of the Ocean (Part II), S. O. Rice, Report MM-43210-6, BTL, Oct. 13, 1943. CP-532.2-M3

304. S-Band Measurements of Reflection Coefficients for Various Types of Earth, E. M. Sherwood, Report 5220.129, Sperry Gyroscope Company, Oct. 29, 1943. CP-532.1-M1 305. Special Report on the Determination of the Coefficient of Reflection of Radio Waves at the Ground by Means of Radar Observations, W. Sterling Ament, Report RA3A-212A, NRL, Nov. 10, 1943. CP-532.1-M2 306. Scattering, T. L. Eckersley, OSRD WA-2255-1F, JEIA 3904, Report TR-481, BRL, November 1943.

CP-512-M3

307. Preliminary Measurements of 10 Cm Reflection Coefficients of Land and Sea at Small Grazing Angles, Pearl J. Rubenstein and William T. Fishback, Division 14 Report 478, RL, Dec. 11, 1943. CP-532-M1 308. Further Measurements of 3- and 10-Cm Reflection Coefficients of Sea Water at Small Grazing Angles, William T. Fishback and Pearl J. Rubenstein, OEMsr-262, Division 14 Report 568, RL, May 17, 1944. CP-532.2-M4 309. Microwave Propagation Studies, The Reflection of Sound Signals in the Atmosphere, Case 37003, File 36691-1,

F. H. Willis, Report MM-44-160-156, BTL, July 3 1944.

310. Interim Report on Experiments on Ground Reflection at a Wavelength of 9 Cm, L. H. Ford, JEIA 4899, Paper RRB/C.101, DSIR, July 7, 1944.

311. An Experimental Investigation of the Reflection and Absorption of Radiation of 9-Cm Wavelength, L. H. Ford and R. Oliver, OSRD WA-3386-2, Paper RRB/C-107, DSIR, Oct. 27, 1944. CP-532-M2 312. The Measurement of High Reflections at Low Power (Radome Bulletin No. 7), Raymond M. Redheffer, OEMsr-262, Division 14 Report RL-483-7, RL, Nov. 20, 1944. CP-531-M3 313. Ground Reflection Coefficient Experiments on X-Band, Case 20564, W. M. Sharpless, Report MM-44-160-250, BTL, Dec. 15, 1944. CP-532.1-M3 314. The Reflection Coefficient of a Linearly Graded Layer, OSRD WA-3438-5, Report TR-492, BRL, December 1942. CP-531-M2

315. Reflection and Scattering, T. L. Eckersley, OSRD WA4002-12, Report TR-506, BRL, January 1945.

CP-532.2-M5 316. Reflection from an Inversion, L. E. Beglian and F. J. Northover, OSRD WA-4494-14, JEIA 9997, Report AC-8210, USW-140, USW, May 24, 1945. CP-531-M5 317. Notes on the Comparison of Vertical and Horizontal Polarization in Ground Wave Propagation, G. Millington, OSRD WA-1463-5, Report TR/442, BRL, January 1940. CP-540-M1 318. Horizontal and Vertical Polarization, T. L. Eckersley, OSRD II-5-5280, Report TR-441, BRL, July 1942. CP-540-M2

319. The Investigation of Horizontally and Vertically Polarized Direction Finding on Frequencies of the Order of 20 to 70 Megacycles per Second, T. L. Eckersley, OSRD II-5-5284, Report TR-451, BRL, September 1942. CP-540-M3 320. Polarization Effects and Aerial System Geometry at Centimeter Wavelengths, E. C. S. Megaw, H. Archer-Thomson, and E. M. Hickin, Report 8101, GEC, Nov. 26, 1942.

321. Change of Polarization as a Means of Gap Filling, Richard A. Hutner, Francis Parker, Bernard Howard, and Jocelyn Gill, Division 14 Report C-7, RL, Dec. 28, 1942. CP-540-M4

322. Vertical Polarization vs Horizontal Polarization, Ralph
C. Loring, Tentative Technical Report T-1, CESL,
Oct. 22, 1943.
CP-540-M5

323. The Depolarization of Microwaves, M. Kessler, C. E.
Mandeville and E. L. Hudspeth, Division 14 Report
458, RL, Nov. 1, 1943.
CP-540-16
324. Polarization Studies at S and X Frequencies, O. J. Baltzer,
W. M. Fairbank, and J. D. Fairbank, OEMsr-262,
Division 14 Report 536, RL, Mar. 14, 1944. CP-540-M7
325. Screening by Hills, H. G. Booker, OSRD WA-1105-3C,
Report T-1015, TRE, May 1941. CP-231.222-31
326. Diffraction Round a Sphere or Cylinder, G. Millington,
OSRD II-5-5703, Report TR-433, BRL, March 1942.
CP-231.21-M1

327. Centimeter Wave Transmission Measurements from an Urban Site, H. Archer-Thomson, E. M. Hickin, and E. C. S. Megaw, Report 8034, GEC, July 28, 1942.

328. Report on an Investigation of the Propagation of Centimeter
Waves over Ridges and Through Trees, R. L. Smith-Rose,
OSRD WA-772-19, Report AC-4345, Com. 181, NPL,
June 2, 1943.
CP-231.22-M1

329. A Note on the Propagation of K-Band Waves Through
Trees, Case 22098, S. D. Robertson, Report MM-43-160-
129, BTL, Aug. 13, 1943.
CP-231.221-M1
330. Report on Further Experiments on the Propagation of
Centimeter Waves Through Trees in Leaf and over Level
Ground, OSRD WA-1337-3, Report AC-5059, Com. 197,
NPL, Sept. 6, 1943.
CP-231.221-M2

331. Centimeter Wave Propagation, Notes on the Effect of Obstruction by a Single Tree, R. E. Jennings, E. C. S. Megaw, H. Archer-Thomson, and E. M. Hickin, OSRD WA1356-6, Report M-565, ASE, October 1943.

CP-231.221-M3 332. An Experimental Investigation on the Propagation of Radio Waves over Bare Ridges in the Wavelength Range 10 Centimetres to 10 Metres, Frequencies 30 to 3000 Mc/s, J. S. McPetrie and L. H. Ford, OSRD WA-1463-17, Paper RRB/S-12, NPL-DSIR, Oct. 1, 1943.

CP-231.222-M2 333. Some Observed Effects of Trees upon Microwave Propagation, Case 37003, File 36691-1, A. C. Peterson, Report MM-43-160-150, Sept. 17, 1943, Revised Oct. 15, 1943. CP-231.221-M4 334. Effect of Hills and Trees as Obstructions to Radio Propagation, Delmer C. Ports, OSRD 3070, OEMsr-1010, Jansky and Bailey, November 1943. CP-231.22-M2

335. Report on Some Further Experiments on the Effect of Obstacles on the Propagation of Centimetre Waves, L. H. Ford, A. C. Grace, and J. A. Lane, JEIA 3157, Report AC-5876, NPL-RD, USW, Jan. 20, 1944.

Addendum, R. L. Smith-Rose, OSRD WA-3822-12, Report AC-5876a, NPL, Jan. 1, 1945. CP-231.223-M1 336. The Propagation of Ultra Short Waves Round Hills and Other Obstacles, T. L. Eckersley, OSRD WA-2884-3, JEIA 5674, Report TR-479, BRL, May 1944.

CP-231.222-M3

337. Scattering of Radio Waves by Metal Wires and Sheets, F. Horner, JEIA 7793, Paper RRB/C-110, DSIR, Jan. 1, 1945.

338. Some Experiments on the Propagation over Land of Radiation of 9.2-Cm Wavelength, L. H. Ford, OSRD WA4297-8, Paper RRB/C-113, NPL-DSIR, Feb. 15, 1945. CP-231.22-M3

339. A Preliminary Study of Ground Reflection and Diffraction Effects with Centimetric Radar Equipment, J. S. Hey, F. Jackson, and S. J. Parsons, OSRD WA-5062-2, Report 274, AORG, June 28, 1945. CP-231.21-M2

340. Diffraction at Coast Line, Sloping Site, H. G. Booker, OSRD WA-986-6c, Report 10, TRE, May 1, 1941. CP-233-M2

341. Mixed Land and Sea Transmissions, T. L. Eckersley, OSRD II-5-5515, Report E-16, BRL, October 1941. CP-233-M3

342. Diffraction at Coast Line, Further Numerical Examples,
H. G. Booker, OSRD WA-92-5d, Report M-35, TRE,
Feb. 5, 1942.
CP-233-M4
343. Coastal Refraction, OSRD II-5-5281, Report TR-436,
BRL, May 1942.
CP-233-M5
344. Propagation of Wireless Waves over Ground of Varying
Earth Constants (Part Land and Part Sea), G. Millington,
OSRD II-5-5277, Report TR-440, BRL-Marconi, Ltd.,
July 1942.
CP-233-M6

345. Transmission over Ground of Varying Earth Constants,
OSRD II-5-5457, Report TR-473, BRL, July 1943.
CP-233-M8
346. Diffraction at Coast Line (Appendix to Report on Siting
of RDF Stations), H. G. Booker, OSRD WA-986-6b,
Report 6, TRE, Jan. 27, 1944.
CP-233-M1
347. Siting and Coverage of Ground Radars, E. J. Emmerling
OEMsr-1207, Report WPG-10, CUDWR, May 1945.
(See reference 12.)
CP-202.4-M6
348. Scattering and Spurious Echoes, T. L. Eckersley, OSRD
II-5-5275, Report TR-437, BRL, April 1942.

CP-621.7-M1 349. Reflection of 10-Cm Radiation by Model Aircraft, A. F. Phillips, Christchurch Report 174, ADRDE, Sept. 8, 1942.

350. Elementary Survey of Scattering and Echoing by Elevated Targets, H. G. Booker, Report M/48/HGB, TRE, December 1942.

351. The Resolution of Composite Echoes with Centimeter Wave R.D.F., J. R. Benson, J. A. Ramsay, and P. B. Blow, OSRD WA-1789-2, Report 4070/C/104, CAEE, Feb. 10, 1943. CP-623-M3 352. Microwave Radar Reflection, J. F. Carlson and S. A. Goudsmit, Division 14 Report 43-23, RL, Feb. 20, 1943. CP-623-M4 353. Reflection of Radar Waves from Targets of Simple Geometric Form, Lloyd J. Anderson, John B. Smyth, and F. R. Abbott, BuShips Problem X4-49CD, Report WP-3, NRSL, Feb. 24, 1943. CP-612.4-M1

354. Radar Echoes from Periscopes, John E. Freehafer, Division 14 Report 42-1, RL, Mar. 1, 1943. CP-622.1-M1 355. Radar Echoes from Atmospheric Phenomena, Arthur E. Bent, Division 14 Report 42-2, RL, Mar. 13, 1943. CP-621.1-M1 356. Echoes Produced by Perfectly Conducting Objects of Certain Simple Shapes in Free Space, R. E. B. Makinson OSRD II-5-5691, Report RP-173, CSIR, Mar. 25, 1943.

CP-622.5-M1

357. Gratings and Screens as Microwave Reflectors, Division 14 Report 54-20, RL, Apr. 1, 1943. CP-611-M1 358. Report on an Investigation into the Nature of Sea Echoes, OSRD WA-1142-3, Report T-1497, TRE, May 12, 1943. CP-621.6-M1

359. The Application of Corner Reflectors to Radar (Theoretical), R. D. O'Neil, F. S. Holt, and Prescott D. Crout, Division 14 Report 43-31, RL, May 14, 1943.

CP-611.1-M1 360. The Application of Corner Reflectors to Radar (Experimental), R. D. O'Neil, Division 14 Report 55-4, RL, July 1, 1943. CP-611.1-M2

361. Measurement of the Effective Echoing Areas of Various Aircraft, Ross Bateman, Report ORG-P-8-1, OCSO, July 2, 1943. CP-622.3-M1 362. Overwater Observations at X and S Frequencies on Surface Targets, O. J. Baltzer, V. A. Counter, W. M. Fairbank, W. O. Gordy, and E. L. Hudspeth, Division 14 Report 401, RL, July 26, 1943. CP-612.3-M1 363. Towed Radar Targets, G. A. Armstrong and G. H. Beeching, OSRD WA-1012-2, Research Report 212, ADRDE, Aug. 6, 1943. CP-612.2-M1 364. Corner Reflector Tests at Langley Field, C. M. Gilbert, Division 14 Report 402, RL, Aug. 6, 1943.

CP-611.1-M3 365. Properties of Corner Reflectors, Case 22098, S. D. Robertson, Report MM-43-160-130, BTL, Aug. 12, 1943.

CP-611.1-M4 366. Use of Corner Reflectors as IFF on Ships, OSRD II-55680, Operational Research Report 24, Australian ORS and CSIR-RL, Aug. 30, 1943. CP-611.1-M5 367. An Investigation into the Nature of Sea Echoes, A. C. Cossor, Ltd., JEIA 1221, Report MR-109, Research Department Myra Works, London E10, Sept. 8, 1943. 368. The Scattering of Radiation from Rectangular Planes, Half-Cylinders, Hemispheres, and Airplanes, Contract W-2279sc-551, Item 3, Moore School of Engineering, University of Pennsylvania, Oct. 12, 1943. CP-512-M2 369. On the Appearance of the A-Scope when the Pulse Travels Through a Homogeneous Distribution of Scatterers, A. J. F. Siegert, Division 14, Report 466, RL, Nov. 9, 1943. Div. 14-124.2-M2 370. On the Fluctuations in Signals Returned by Many Independently Moving Scatterers, A. J. F. Siegert, Division 14 Report 465, RL, Nov. 12, 1943. Div. 14-122.113-M7 371. The Use of Permanent Echo Amplitudes for Monitoring S-Band Radar Equipment, F. J. Kerr and J. F. McConnell, OSRD II-5-5750, Report RP-177/2, CSIR-RL, Dec. 7, 1943. CP-623-M5 372. The Range Calculator, S. J. Mason, Division 14 Report 497, RL, Dec. 20, 1943. CP-202.4-M2

373. The Performance of 10-Cm Radar on Surface Craft, B. F.
Schonland, OSRD WA-1570-39, Report 155, AORG,
Jan. 3, 1944.
CP-202.312-1

374. Special Report on Radar Cross Section of Ship Targets,
Martin Katzin, Report RA-3A-213A, NRL, Jan. 24,
1944.
CP-612.1-M1

375. Observations of Life Rafts Equipped with Corner Reflectors, Emmett L. Hudspeth and John P. Nash, Division 14 Report 533, RL, Feb. 15, 1944. CP-611.1-M6 376. Radar Cross Section of Ship Targets (Part II), W. Sterling Ament, Martin Katzin, and F. C. MacDonald, Report R-2232, NRL, Feb. 18, 1944. CP-612.1-M1

377. Optical Theory of the Corner Reflector, R. C. Spencer, OEMsr-262, Division 14 Report 433, RL, Mar. 2, 1944. CP-611.1-M7

378. Observations on Signal Stability at S and X Frequencies,
Otto J. Baltzer, Jr., William M. Fairbank, and J. D.
Fairbank, OEMsr-262, Division 14 Report 537, RL,
Mar. 14, 1944.
CP-632-M1
379. Interim Report on the Recognition of Radar Echoes, F. E.
S. Alexander, OSRD II-5-5796(S), JEIA 3401, Report
RD-1/353, RDL-DSIR, NZ, Mar. 20, 1944. CP-623-M6

380. Screened and Unscreened Radar Coverage for Surface Targets, W. Walkinshaw and J. E. Curran, OSRD WA2284-2, Report T-1666, TRE, March 1944.

CP-612.3-M2

381. The Performance of Naval Radar Systems Against Aircraft, F. Hoyle, OSRD WA-2255-10, Report JEIA-3902, ASE, Apr. 3, 1944. CP-202.11-M2 382. Preliminary Report on the Fluctuations of Radar Signals, H. Goldstein and Paul D. Bales, OEMsr-262, Division 14 Report 569, RL, May 16, 1944. CP-632-M2 383. Radar Ranging on Land Targets, OSRD II-5-6178(S), Memorandum 101/G-36/ALH, TRE, May 18, 1944. CP-202.4-M3 384. The Radar Echoing Power of Conducting Spheres, T. Pearcey, and J. M. C. Scott, OSRD WA-2334-6, Report CR-228, ADRDE, May 24, 1944. CP-623-M7 385. Use of Corner Reflectors in Beaconry, F. J. Kerr, OSRD II-5-6145(S), JEIA 5180, Report RP-200, CSIR-RL, June 8, 1944. CP-611.1-M8 386. Calibration and Standardization of Land Based Radars by the Use of Small Plane Targets, F. R. Abbott, BuShips Problem X4-49CD, Report WP-12, NRSL, June 10, 1944. CP-612.5-M1 387. Test of the Pre-Production Model Corner Reflector, Final Report of Project E-44-37, Alvin E. Hebert and C. B. Overacker, AAF Board Project (M-3) 69-Eglin Field, Fla., Report 413.44/R387.1, Intel. Br. OCSO-USA, CP-611.1-M9 June 17, 1944. 388. Radar Cross Section of Ship Targets (Part III), W. Sterling Ament, Martin Katzin, and F. C. MacDonald, Report R-2295, NRL, June 27, 1944. CP-612.1-M1 389. Notes on Echoes and Atmospherics from Lightning Flashes on P Band, J. L. Pawsey, OSRD II-5-6144(S), JEIA 5177, Report RP-49-2, CSIR-RL, July 11, 1944.

CP-621.3-M1 390. Theory of Ship Echoes as Applied to Naval RCM Operations, T. S. Kuhn and Peter J. Sutro, OEMsr-411, Research Project RP-186, Report 411-93, Harvard University, RRL, July 14, 1944. Div. 15-221.11-M2

391. Radar Echoes from the Nearby Atmosphere, Case 37003-4,
Millard W. Baldwin, Jr., Report MM-44-150-2, BTL,
July 18, 1944.
CP-621-M1
392. Radar Cross Section of Ship Targets (Part IV), W. Sterl-
ing Ament, Martin Katzin, and F. C. MacDonald, Re-
port R-2332, NRL, July 21, 1944. CP-612.1-M1
393. Radar Echoes from the Nearby Atmosphere, Second Report,
Case 37003-4, Millard W. Baldwin, Jr., Report MM-44-
150-3, BTL, July 31, 1944.
CP-621-M1
394. Reflecting Properties of Metal Gratings, J. S. Gooden,
OSRD II-5-6230(S), Report RP-215, CSIR-RL, July
CP-611-M2
31, 1944.
395. Theory of the Performance of Radar on Ship Targets
(ADRDE and CAEE Joint Report), M. V. Wilkes, J. A.
Ramsay, and P. B. Blow, OSRD WA-2843-10, ADRDE
Reference R04/2/CR252, CAEE Reference 69/C/149,
July 1944.
CP-612.1-M2

396. Corner Reflectors for Life Rafts, Emmett L. Hudspeth and
John P. Nash, OEMsr-262, Division 14 Report 608, RL,
Aug. 1, 1944.
CP-611.1-M10