40 



R- SERIES 



294. Investigation of Hull Vibrations of USCGC PONTCHARTRAIN (WPG70), by R.B. 

 Allnutt. Aug 1946. 9 pp., 6 figs. 



2$6. Progress Report on Underwater Explosion Research - Bureau of Ships Sym- 

 bol El 39- Apr 19^5. 



Part 24 - Analysis of the Explosion Damage from Two Small Charges Fired 

 against the Hull of a Liberty Ship, by Dr. G.E. Hudson and Dr. M.A. 

 Greenfield, pp. 1-15. figs. 1-15- 



Part 25 - Energy Absorption of Steel Plates of Different Thicknesses 

 under Dynamic or Static Loading, by A.R. Cohen, Chief Specialist (X), 

 USNR, and B. Stiller,. Specialist (X) 1/c, USNR. pp. 1 6-23, figs. 17- 

 22. 



Part 26 - The Resistance of Thick Pused-Quartz and Plastic Plates to 

 Static and Underwater Explosion Pressures, by J.J. Donoghue, C.T. 

 Johnson, and R.G. Hill. pp. 24-38, figs. 23-25. 



304. A Study of the Surface Effects Caused by an Underwater Explosion. Part 



2 - 1750-Pound Charges of Torpex near the Bottom and 40 Feet below the 

 Surface, in 96 Feet of Water, by Lt. D.C. Campbell, USNR. May 1945. 17 

 pp. , 12 figs. 



310. Model Tests to Determine the Forces on the Stern-Gate Operating Mechanism 

 of the ARD12 Class of Floating Drydocks. in Waves, by M. Gertler. Feb 

 1947. 27 pp., 20 figs. 



313. A Photographic Method of Printing Templates on Wood, by F.B. Kaye. Jul 

 1946. 6 pp. , 3 figs. 



317. Hydrodynamic Forces on an Anchor Cable, by L. Landweber. Nov 1947- 13 



pp., 6 figs. 



318. Photographic Methods of Observation at the David Taylor Model Basin. 



Part 1 - A Simple Spark Timer for the Eastman High-Speed Camera, Type 

 III, by Lt. Comdr. D.C. Campbell, USNR. Jun 1946. 9 PP-, 11 figs. 



334. Information for Companies Desiring Ship Model Tests. Jan 1946. 3 PP- 



340. Development and Performance of a Catamaran-Float Arrangement for Towing 

 a Portable Fathometer, by P. Eisenberg. Oct 1947- 23 pp., 21 figs. 



347. Tensile Tests of Small-Scale Welded Joints, by T.D. Tuft. Mar 1948. 20 



pp. , 8 figs. 



348. Underwater Explosion Tests of Simple Structures Fabricated with Everdur 



Brazing, by T.D. Tuft. Dec 1947. 29 pp., 20 figs. 



349. Static Structural Tests of Eleven Lightweight Anchors, by J.G. McGinley. 



Jan 1948. 33 PP., 11 figs. 



350. Constructive Suggestions and Inventions by Personnel in the Naval Estab- 



lishment, a Reprint of ALNAV 227 dated 8 May 1946. Sep 1946. 5 pp. 



351. Operating and Service Manual for the TMB Type 1A Strain Indicator, by 



W.S. Campbell. Jul 1947- 32 pp., 19 figs. 



