Page:Popular Science Monthly Volume 63.djvu/283

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has been in progress in the columns of the London Times a correspondence on certain serious topics that has aspects both amusing and pathetic. Lord Kelvin, in moving a vote of thanks at the close of a lecture before the Christian Association of University College, London, said that "science positively confirmed creative power. . . . Modern biologists were coming to a firm acceptance of something, and that was a vital principle. . . . They were absolutely forced by science to admit and to believe with absolute confidence in a directive power." Lord Kelvin subsequently explained that a fortuitous concourse of atoms would account for the formation of a crystal, but that creative power is necessary for the growth of a sprig of moss. Sir William Thistleton-Dyer, director of the Kew Botanical Gardens, calls Lord Kelvin sharply to account, saying that 'for dogmatic utterance on biological questions there is no reason to suppose that he is better equipped than any person of average intelligence.' Sir William is, however, ready to enter the field of physics, and tells Lord Kelvin that his ether is 'a mere mathematical figment.' Sir John Burdon-Sanderson intervenes to express regret that "A most distinguished British botanist has thought it necessary to 'cross swords' with the most distinguished of British physicists with reference to a question on which it is desirable that all men of science should be in accord," and to disclaim on the part of his own science, physiology, the opinion that Lord Kelvin is not competent, when von Helmholtz has spoken of his 'surprising acuteness, clearness and versatility.' But Sir John immediately proceeds to state that physiologists do not believe in a vital principle, that the processes of animal and plant life are governed by the natural laws which have been established for the inorganic world. Mental processes and organic evolution can not, however, be directly measured or observed. In spite of the desirability of accord and of Lord Kelvin's great competence, he is mistaken as regards Sir John's science, though psychology and organic evolution may very well be outside the range of exact science. Sir Oliver Lodge, the eminent physicist, does not like the phrase 'creative power,' but believes that the formation of an animal or plant requires in addition to the laws of mechanics 'the presence of a guiding principle or life germ.' He also regards 'telepathy' as a recently discovered fact. Professor Ray Lankester, director of the British Museum of Natural History, thinks that an injustice would be done both to Lord Kelvin and to his critics unless he points out the significant features of the matter. Professor Karl Pearson, Mr. W. H. Mallock and others have joined in the discussion, and it is the theme of editorial articles in the Times and The Spectator, both of which are orthodox and dogmatic.

It is a fact of some interest that British physicists have been inclined to religious orthodoxy—Faraday, Maxwell, Stokes and Kelvin may be mentioned. Sir Oliver Lodge believes in telepathy and Sir William Crookes in ghosts. The physical sciences have outlived their conflict with current theology, whereas in the past half century biology has had to bear the