At Lincoln Asylum,[751] about 1838, Dr. Gardner Hill removed mechanical restraints, and Dr. Conolly[752] followed at Hanwell in the succeeding year. In this they were, of course, opposed in the Profession,[753] but new ideas and new conceptions were coming, which are still working in the treatment of insanity. All along, heretofore, the Mind and the Body had been conceived as two separate things. People had ceased to believe in the interference of devils, but they spoke vaguely of “a mind diseased.” There being often no physical injury that could be detected, “the common opinion seemed to be confirmed that it” (mental disorder) “was an incomprehensible, and consequently an incurable, malady of the mind.”[754] A medical writer[755] of the early nineteenth century could allude to lectures he had attended, at which the doctor had declared that treatment and physic were useless in a case of _furor uterinus_, because it was a disease of the mind, not of the body. No doubt there loomed the fear of Free Will and Theology. “... Many very able men,” says Dr. Halliday,[756] “led away by what appeared to be the general opinion of mankind, shrank from a strict investigation of a subject that seemed to lead to a doubt of the immateriality of mind, a truth so evident to their own feelings and so expressly established by divine revelation.” It is not for us to turn aside into labyrinths, or to attempt to settle what “mind” may mean. But we know that, to our present power of comprehension, the mind can only function through the body. How it first formed, and if it can yet rekindle, are vital questions which may never be answered; at any rate they lie beyond our range. Gradually metaphysics and moral concepts were left behind as experts examined facts. “... Derangement,” says a nineteenth-century writer,[757] “is no longer considered a disease of the understanding, but of the centre of the nervous system, upon the unimpaired condition of which the exercise of the understanding depends. The brain is at fault and not the mind.” “The old notion,” says Dr. Wynter,[758] “that derangement of mind may happen without any lesion of the instrument of thought being the cause or consequence, has long been exploded.”