Conclusion That, I am afraid, is a poor conclusion to a lecture which commemorates a man whose researches were of such immediate practical benefit to so many people. I wish I had something better to offer than these incomplete results on a sense organ which has never roused much interest. I can still recall the intense interest which the work of Banting and Best aroused in all of us, in physiologists as well as in every doctor. But such triumphant victories come very rarely, and they are separated by the slow, plodding attack on a wide front. I have described a minor incident in that attack with a speculation attached to it; but I have done so because most of our research is like that, and because it is with such inconclusive results that you must contrast the spectacular advance which came with the finding of insulin.