The remarkable fact in the intellectual life of to-day is the contradiction in which it is entangled. On one hand we have an enormous development of science, both in specialisation of method and accumulation of material; its extension and thorough-going application to all ranges of experience. What we should expect from such a movement, would seem to be confidence of intelligence in itself; and a corresponding organisation of knowledge, giving some guide and support to life. The strange thing is that instead of this we have, probably, the greatest apparent disorganisation of authority as to intellectual matters that the world has ever seen; while the prevalent attitude and creed of scientific men is philosophic agnosticism, or disbelief in their own method when it comes to fundamental matters. Such a typical representative of modern science as Mr. Huxley virtually laughs to scorn the suggestion of Mr. Frederic Harrison that science should or could become so organised as to give any support, any authoritative stay, to life. Now I do not intend to discuss this apparent contradiction. It seems to me obvious enough that the contradiction is due to the fact that science has got far enough along so that its negative attitude towards previous codes of life is evident, while its own positive principle of reconstruction is not yet evident. But without urging this view upon the reader, I wish to ask how and where in the prevailing confusion logical theory, as a synopsis of the methods and typical forms of intelligence, stands. Logical theory at once reflects and transforms the existing status of matters intellectual at any period. It reflects it, for logical theory is only the express, the overt consciousness on the part of intelligence of its own attitude, prevailing spirit. It transforms it, because this express consciousness makes intelligence know where it stands, makes it aware of its strength and of its weakness, and by defining it to itself forces it to take up a new and more adequate place. It is obvious, then, that as the prevailing influence in the intellectual world to-day is science, so the prevailing influence in logical theory must be the endeavor to account for, to justify, or at least to reckon with this scientific spirit. And yet if there is such confusion as we have indicated, then there is also manifested some chaos in logical theory, as to the true nature and method of science. Were it otherwise, were there at present a logical theory adequate to the specific and detailed practical results of science, science and scientific men would be conscious of themselves, and would be confident in their work and attitude.