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This paper presents an analysis of the deflections of and stresses in a short noncircular cylindrical shell of uniform wall thickness whose median-surface cross section is described analytically by a simple expression corresponding to a family of doubly symmetric ovals. The cylinder is under a uniform lateral load and is simply supported at its edges. The small deflection analysis considered is based upon a series solution of appropriate differential equations of shell theory which leads ultimately to infinite sets of algebraic equations, truncated forms of which are considered. Numerical values of the significant stresses and displacements for points of the oval cylinder, which are 5 percent of the axial length and 2.5 percent of the circumferential length a part, have been calculated for an oval cross section with a major-minor axis ratio of 1.10.

Other labeled ethers, CD3OCH2CH=CH2, CH3OCD2CH=CH2, CD3OC2H5, and CH3OC2D8, were prepared respectively from CH2=CHCH2OH, CH2=CHCD2OH,16* C2H8OH, and C2D8OD (99.5% d) by reaction with CD3I or CH3I in the presence of silver oxide and dimethylformamide.6 Yields were in the range of 68-92%. 3-Oxapentane-1,1,2,2,2-ds was prepared in 67% yield from a solution of ethyl-d8 alcohol-d (99.5% d, 1.4 g, 27 mmol) and sodium metal (0.13 g, 5.65 mmol) and iodoethane (0.92 g, 5.9 mmol). Methyl ether labeled with 180 was prepared from Relabeled methanol by reaction with iodomethane and silver oxide in dimethylformamide. The labeled methanol was obtained by the hydrolysis of tri-n-butyl orthoformate with H2180 (99% 180)2°(

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