Persons who wish to pursue the study of dialectics and partisan literature in connection with psychical phenomena may be recommended to read _Light_ and _The International Psychic Gazette_, which are the two leading organs of the Spiritualists in England, and the _Literary Guide_ (the sub-title being _The Rationalist Review_), which is published by the Rationalist Press Association, and is the recognised mouthpiece of the most distinguished exponents of Rationalism in the United Kingdom. All three of the publications referred to are characterised by much learning and very great ability. The facts they record are selected carefully from partisan points of view and the comments and arguments that appear in their pages are admirably one-sided and correspondingly conclusive. But the reader is thus enabled to see both sides of the shield, and has himself only to blame if he become the champion of either gold or silver. Current literature, however, is not the only danger in the path of persons who desire to walk in the company of Reason. Current teaching is perhaps even more formidable, and especially so where Science is concerned. The popular idea of scientific men is that they are votaries of Truth and are deaf to the voice of every other deity. Hence the authority wielded by the leaders of Science, and the willing obedience rendered to their behests. It is rarely remembered that scientific men are simple human beings, subject to the same weaknesses and possessed of the same foibles as the rest of the race. History has shown that if power be placed in the hands of any professional set of men it will inevitably be abused; and Science does not provide an exception to the rule. There is every whit as much bigotry, blind dogma and savage intolerance in scientific circles as ever there was in any ecclesiastical or puritanical organisations. Sir William Crookes, O.M., P.R.S., found this out very many years ago, and Sir Oliver Lodge, F.R.S., is now rediscovering it; the latter case of persecution by the Rationalistic Inquisition being rendered particularly piquant because of the great indebtedness of current materialism to the famous champion of the Ether--a doctrine that forms the only line of defence as yet available against the attacks of the Becquerel rays, the Ballistic Theory of Explosives and other subverters of modern dogma.