E- SERIES 



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

 Plates, by Dr. D.E. Widenburg and Capt. W.P. Eoop, USN. Jun 19^5- 

 19 pp., 7 figs. 



27^. Sesistance Tests of Two Small Torpedo Eorms, by \J.E. Bowers. Aug 

 191+5. 5 PP-j ^ figs. 



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

 Steel, by Capt. W.P. Eoop, USN. Jul 19^1+. 17 PP-, 5 figs. 



277- A Time-Savlng Method of Compiling, Tabulating, and Indexing Large 

 Groups of Data, by M.C. Roemer. Sep l^kk. 11 pp., 9 figs. 



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

 Symbol E139. Dec 19ii-i+. 



Paii; 21 - Vibration of Elastically Clamped Beams, by E. Specht, pp. 

 1-11, figs. 1-5. 



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

 Freely Suspended Plane Target, by C.T. Johnson, pp. 12-l6, figs. 

 4-7. 



Part 23 - Notes on Plastic Deformation of Elliptical Plates under 

 Hydrostatic Pressure, by M. Levenson. pp. 17-19' 



280. Plastic Deformation and Energy Absorption of a Thin Rectangular Plate 

 under Hydrostatic Pressure, by Dr. A.N. Gleyzal. Jan 19^^-5 • I8 pp., 

 5 figs. 



282. Comparative Test of the NDRC Tourmaline and the Tlvffi Diaphragm Air-Blast 

 Gages, by B. Sussholz. Aug 1946. 35 PP-j 19 figs. 



284. (Aero 692). Wind-Tunnel Tests of Parachutes, by R.H. Helmholz. Jan 

 1949. 22 pp., 11 figs. 



287. (Aero 6^k) . Airflow Tests over Plight Deck of l/U8-Scale Model CVL48 

 with Various Leading Edges, by J. Norman Fresh. Jan 19^5. ik pp., 

 10 figs. 



289. Model Tests of V/eld Reinforcements for the Hatch Corners of Welded 



Ships, by Comdr. G.L. Smith, USN (Ret). Nov 1944. 29 pp., 24 figs. 



11-14 



