13. . Report 1759: The elastic buckling strength of spherical glass 



shells, by M. A. Krenzke and R. M. Charles. Washington, D. C, Sept. 1963. 

 (AD 423588) 



14. . Report 1713: The elastic buckling strength of near-perfect 



deep spherical shells with ideal boundaries, by M. A. Krenzke. Washington, 

 D. C, July 1963. (AD 416057) 



15. J. W. Mavor. "Observation windows of the deep submersible ALVIN," 

 Journal of Ocean Technology, vol. 1, no. 1, June 27, 1966, pp. 2-16. 



16. Naval Civil Engineering Laboratory. Technical Report R-51 2: Windows 

 for external or internal hydrostatic pressure vessels, pt. 1. Conical acrylic 

 windows under short-term pressure application, by J. D. Stachiw and K. 0. 

 Gray. Port Hueneme, Calif., Jan. 1967. (AD 646882) 



17. : Technical Report R-527: Windows for external or internal 



hydrostatic pressure vessels, pt. 2. Flat acrylic windows under short-term 

 pressure application, by J. D. Stachiw, G. M. Dunn, and K. 0. Gray. Port 

 Hueneme, Calif., May 1967. (AD 652343) 



18. . Technical Report R-631 : Windows for external or internal 



hydrostatic pressure vessels, pt. 3. Critical pressure of acrylic spherical 

 windows under short-term pressure applications, by J. D. Stachiw and 

 F. W. Brier. Port Hueneme, Calif., June 1969. (AD 689789) 



19. Naval Air Engineering Center. Aeronautical Materials Laboratory. 

 Report no. NAEC-AML-2350: Oceanographic effects on plastic engineering 

 materials, by H. J. Lee. Philadelphia, Pa., Jan. 1966. (AD 481419) 



20. . . Report no. NAEC-AML-2260: Oceanographic 



effects on plastic engineering materials (Part A) and elastomeric engineering 

 materials (Part B), by H. J. Lee and E. J. Colacicco. Philadelphia, Pa., Jan. 

 1966. (AD 481377) 



21. Southwest Research Institute. Final report on Contract N00123-67-C- 

 2123: NEMO stress analysis and material investigation, by R. C. DeHart, 

 T. Wah, and L. R. Calcote. San Antonio, Tex., Mar. 1968. (SwRI Project 

 no. 03-2159) 



22. Naval Civil Engineering Laboratory. Technical Note: The spherical 

 acrylic pressure hull for hydrospace application; part II — experimental 

 stress evaluation of prototype NEMO capsule, by J. D. Stachiw and K. Mack. 

 Port Hueneme, Calif. (To be published.) 



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