# Correspondence Strength of Compression Members

*I should like to contribute to the discussion on compression members, started by my friend Mr. Ewart S. Andrews. My contribution will be along the lines of an article of mine published in R. R. Age-Gazette, July 2nd, 1909, and re-printed in my book “Steel Designing.” Engineers have almost universally ignored my attack of the problem, though it furnishes an exact theoretical basis for the straight-line formula as applied to a hinged-end column. In fact it proves that the straight-line formula is the one logical formula for structural columns, or those limited to 120 or 150 radii in length.
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