readily the defects of a piece of work, and resented unfair treatment at the hands of those who had little right to pass judgment. Thus when the Bishop of Oxford made a brilliant but intolerant address against evolution, and published an article containing the substance of his speech, Darwin wrote, "These very clever men think they can write a review with a very slight knowledge of the book reviewed or the subject in question"; another and favorable review he characterized as a well-done hash of his own words. Yet even when opposed to the ideas set forth in an article, he retained an even temper, and appreciated whatever of good there might be in the attack. Thus, in speaking the Bishop's criticism he wrote a friend, "If you have not seen the last 'Quarterly,' do get it; the Bishop of Oxford has made capital fun of me and my grandfather."
This same freedom from prejudice, and ability to exercise his control over his ideas, even when in conflict with his own emotions is well shown in his attitude toward the anti-vivisectionists, who wished to prevent experimentation with living animals. Throughout all of his mature life Darwin had a horror of blood-shed; even a slight cut on the hand of one of his youngsters gave him pain. Naturally, the anti-vivisectionists sought to enlist his sympathies—an attempt that was capable of little but harm. To one friend Darwin wrote, in regard to the case, "It is a subject which makes me sick with horror, so I will not say another word about it, else I shall not sleep tonight." Yet he saw clearly the reasons why vivisection is necessary to the science of physiology, and
