But, however wise as a policy the S. P. R.'s maxim may have been, as a test of truth, I believe it to be almost irrelevant. In most things human the accusation of deliberate fraud and falsehood is grossly superficial. Man's character is too sophistically mixed for the alternative of "honest or dishonest" to be a sharp one. Scientific men themselves will cheat--at public lectures--rather than let experiments obey their well-known tendency towards failure. I have heard of a lecturer on physics, who had taken over the apparatus of the previous incumbent, consulting him about a certain machine intended to show that, however the peripheral parts of it might be agitated, its centre of gravity remained immovable. "It _will_ wobble," he complained. "Well," said the predecessor, apologetically, "to tell the truth, whenever _I_ used that machine I found it advisable to _drive a nail_ through the centre of gravity." I once saw a distinguished physiologist, now dead, cheat most shamelessly at a public lecture, at the expense of a poor rabbit, and all for the sake of being able to make a cheap joke about its being an "American rabbit"--for no other, he said, could survive such a wound as he pretended to have given it. To compare small men with great, I have myself cheated shamelessly. In the early days of the Sanders Theater at Harvard, I once had charge of a heart on the physiology of which Professor Newell Martin was giving a popular lecture. This heart, which belonged to a turtle, supported an index-straw which threw a moving shadow, greatly enlarged, upon the screen, while the heart pulsated. When certain nerves were stimulated, the lecturer said, the heart would act in certain ways which he described. But the poor heart was too far gone and, although it stopped duly when the nerve of arrest was excited, that was the final end of its life's tether. Presiding over the performance, I was terrified at the fiasco, and found myself suddenly acting like one of those military geniuses who on the field of battle convert disaster into victory. There was no time for deliberation; so, with my forefinger under a part of the straw that cast no shadow, I found myself impulsively and automatically imitating the rhythmical movements which my colleague had prophesied the heart would undergo. I kept the experiment from failing; and not only saved my colleague (and the turtle) from a humiliation that but for my presence of mind would have been their lot, but I established in the audience the true view of the subject. The lecturer was stating this; and the misconduct of one half-dead specimen of heart ought not to destroy the impression of his words. "There is no worse lie than a truth misunderstood," is a maxim which I have heard ascribed to a former venerated President of Harvard. The heart's failure would have been misunderstood by the audience and given the lie to the lecturer. It was hard enough to make them