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STRESS MAŁY SIS

Flexural buckling, by Albert E. Guy. Arniy ordnance, Washington, Mar.-Apr. 1921, v. 1, no. 5, p. 256-61. diagrs.

Knickung and biegung, von H. Ellerbeck. Zentralblatt der bauver-waltung, Berlin, Mar. 26, 1921, v. 41, no. 25, p. 156-59. diagrs., tables.

Beitrag zur berechnung auf knickung beanspruchter rahrnengebilde, von Karl Lundberg. Eisenbau, Berlin, July 16, 1920, v. 11, no. 14, p. 243-51. illus.

The Buckling of deep beams, by J. Prescott. Philosophical maga-zine, London, Feb. 1920, v. 39, no. 230, p. 194-223. diagrs

Die Durchbiegung der rahraentrager, von E. Elwitz. Zeitschrift fUr bauwesen, Berlin, 1919, v. 69, no. 10-12, p. 703-42. diagrs., tables.

The Sideways buckling of loaded beams of deep section, by J. Prescott. Flight, London, May 30, 1918, v. 10, no. 22, p. 590.

Notę sur le flambage des pieces a treillis, par D. Mathiau.

Le Genie civil, Paris, Dec. 25, 1915, v. 67, no. 26, p. 400-10. diagrs., illus.

COLUMNS

Tests on built-up columns of structure aluminum alloys, by M. Holt. Proceedings of the A.S.C.E., New York, Nov. 1938, v. 64, no. 9, p. 1785-1808. diagrs., illus., tables.

Free-end column with eccentric load, by Scott W. Orr. Civil engineering, New York, Sep. 1958, v. 8, no. 9, p. 617. illus. (letters to the Editor)

A General theorem for the real column, by Roger W. H. Hawken.

Transactions of the Institution of engineers of Australia, Sidney, Sep. 1938, v. 10, no. 9, p. 315-23. diagrs., illus.

Notes on stability of columns and beams, by A. N. Procter. Struć tural engineer, London, Sep. 1937, n.s., v. 15, no. 9, p. 350-67. diagrs., illus., tables.

Knickfestigkeit exzentrisch beanspruchter sSulen etc., von N. Roy Bauingenieur, Berlin, July 23, 1937, no. 29-30, p. 444-46. diagrs., illus.

On the strength of columns that fail by twisting, by Eugene E.

Lundąuist. Journal of the aeronautical Sciences, New York, Apr. 1937, v. 4, no. 6, p. 249-53. diagrs., illus.