[Footnote A: Presented at the meeting of March 16th, 1910.] [Footnote B: "Stresses in Reinforced Concrete Beams," _Journal_, Am. Soc. Mech. Engrs., Mid-October, 1909.] [Footnote C: Page 14, column 8.] [Footnote D: _Engineering News_, December 3d, 1908.]