THE MECHANISM OF ACCOMMODATION

Abstract

At the celebration for medical progress arranged by the University of Pennsylvania last October, Prof. A. V. Hill¹of the Royal Society, London, England, in an eloquent address, suggested a creed for the Johnson Foundation including the following tenets : "I believe in the utility of theories, provided they are not regarded as facts. I admit the necessity of criticism and disbelief ; I hope and pray the damnation of those who are not strictly honest; and I am convinced of the complete reasonableness of natural phenomena." More recently Dr. Robert A. Millikan,²acting as toastmaster at a dinner of the California Institute of Technology in honor of Professor Einstein, stated that "the distinguishing feature of modern scientific thought lies in the fact that it begins by discarding alla prioriconceptions . . . and takes instead as its starting point well authenticated, carefully tested experimental facts no matter whether