I should like to say a word with regard to Lhe origin of this paper. The paper which was read by Mr. H. Kempton Dyson some time ago acted as a thought stimulant, and started me pondering on flexural stress. The next incentive was the inauguration of the Lancashire & Cheshire Branch, and, being elected Chairman, circumstances willed me
to prepare the first paper. This paper was written under very keen pressure, but, I have thought a good deal over it since, and, as a result, I commend it to your consideration. I hope you will set aside, for an hour or two at any rate, orthodox opinions, and treat this matter with a philosophical mind. I recognise that it is a serious thing to challenge a theory which is generations old, but, at the same time, I feel confident that there is supplementary resistance that we are not fully cognisant of.
Albert S. Spencer
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