2Mr. Harris is to be congratulated for presenting a long-needed analysis technique for the mathematical treatment of modified line-contact or crowned roller members. The effects of angular misalignment in cylindrical roller bearings cannot be ignored in demanding applications. Shaft bending together with shaft displacements can introduce significant amounts, of- misalignment in most moderate and heavily loaded applications. The present treatment is much better than the previous linearized approaches mentioned by the author. The present treatment of laminae with nonlinear stiffnessas is especially useful for determining the load per. unit length along the roller when the area of elastic contact under load has been experimentally determined. This can be accomplished by using the expression for semicontact width as a function of roller load (for steel components),