48 



R- SERIES 



251. Catamaran Float Arrangement for Towing the Outboard Projector of a 



Model NK2 Portable Supersonic Depth Recorder - Instructions for 

 Assembling and Towing, by P. Eisenberg. Jun 19^4. 8 pp., 7 figs. 



252. A Study of the Surface Effects Caused by an Undervjater Explosion. Part 



1 - 1750 Pounds of Torpex near the Bottom in 40 Feet of Water, by 

 Capt. H.E. Saunders, USN, and Lt. D.C. Campbell, USNR. Jul 1944. 

 16 pp. , 14 figs. 



254. Progress Report on Underwater Explosion Research - Bureau of Ships 

 Symbol El 39- Jun 1944. 



Part 15 - Effect of Dielectric Absorption in a Cable upon the Pressure- 

 Time Record of an Underwater Explosion, by M.M. Shapiro and E.T. 

 Habib. pp. 1-5, figs. 1-2. 



Part l6 - Additional Data on the Pressure-Time Curve for Underwater 

 Explosions of Very Small Charges of Tetryl, by M.M. Shapiro and E.T. 

 Habib. pp. 6-7, figs. 3-4. 



Part 17 - Resistance-Strain Characteristics of Stretched Pine Wires, 

 by W.J. Sette. pp. 8-10, 



Part l8 - A Theory of the Impulsive Plastic Motion of a Thin Diaphragm 

 Normal to Its Initial Plane, by Dr. G.E. Hudson, pp. 11-30, figs. 

 5-10. 



265. Progress Report on Underwater Explosion Research - Bureau of Ships 

 Symbol El 39- Jul 1944. 



Part 19 - Notes on the Conditions of Brittle Rupture of Ship Plates of 

 Medium Steel, by Capt. W.P. Roop, USN. pp. 1-1 6, figs. I-5. 



Part 20 - Calculation of the Principal Strains of Small, Thin Diaphragms 

 Dynamically Loaded, by B. Stiller and A.R. Cohen, pp. 17-29. figs. 

 6-15. 



267. Experimental and Theoretical Investigations of the Mass-Plug Accelerom- 

 eter, by D.M. Smith. Mar 1946. 20 pp., 14 figs. 



269. Calibration of Piezoelectric Gages at the David Taylor Model Basin, by 

 Dr. A. Borden. Nov 1944. 20 pp., 13 figs. 



271 . Additional Notes on the Conditions of Fracture of Medium Steel Ship 

 Plates, by Dr. D.F. Windenburg and Capt. W.P. Roop, USN. J^jn 1945- 

 1Q pp. , 7 figs. 



276. Notes on the Conditions of Brittle Rupture of Ship Plates .of Medium 



Steel, by Capt. W.P. Roop, USN. Jul 1944. 17 pp., 5 figs. 



277. A Time-Saving Method of Compiling, Tabulating, and Indexing Large Groups 



of Data, by M.C. Roemer. Sep 1944. 11 pp., 9 figs. 



279. Progress Report on Underwater Explosion Research - Bureau of Ships 

 Symbol £139- Dec 1944. 



Part 21 - Vibration of Elastically Clamped Beams, by R. Specht, pp. 

 1-11 , figs. 1-3. 



Part 22 - The Effect of a Contact or Near-Contact Explosion on a Freely 

 Suspended Plane Target, by C.T. Johnson, pp. 12-1 6, figs. 4-7. 



