The Inductive Method is, therefore, almost identical in its mode of procedure with one of the processes anciently adopted for the acquisition of knowledge under the Anticipative or Hypothetical Method. It failed of fruitful results, in this earlier age, because, as we have seen, men were not content with adhering rigorously and patiently to the logical, irresistible conclusions which Facts evolved, but sought to wrench from them Principles, which required for their establishment a wider or different range of phenomena. On the revival of this Method among the modern Scientists, it was conceived, especially by Bacon, that a rigid adhesion to the legitimate deductions of Facts and a faithful exclusion from the domain of knowledge of everything which did _not_ logically and inevitably result from the Observation and Classification of Facts, was the only safe way to arrive at certainty in any department of thought. It is this fidelity to conclusions rigorously derived from Facts, and the severe exclusion of everything not clearly substantiated by Observation, Classification, and Induction, which has given us the body of proximately definite knowledge that we now possess, and which, so far as it has been persevered in, has been productive of such beneficial intellectual results. Under the guidance of this Inductive Method new Sciences have been gradually generated, whose foundations and Principles are capable of such a degree of satisfactory proof as the Method itself affords. During the present century, Auguste Comte, a distinguished French philosopher, often denominated the Bacon of our epoch, the special champion of the Inductive Method, has undertaken, for our day, the task which his illustrious English predecessor attempted for his, namely--an Inventory and Classification of our intellectual stores. He endeavored to bring the Scientific world up to the _practical_ recognition of that which they had _theoretically_ maintained since Bacon's time,--that nothing deserves to be considered as true, which cannot be undoubtedly, conclusively established by inference, from the Facts of Experience,--a theory to which they had never strictly adhered. He insisted that all Theological, Metaphysical, and Transcendental Speculations were wholly beyond the range of exact inquiry, and should therefore be excluded from the domain in which human knowledge was to be sought; and that investigation should be confined to those regions of thought and activity which were within the limits of precise apprehension. Upon this clear, logical and right application of the Inductive Method, Comte based his Classification of our existing knowledge. He denominated as _Positive_ Sciences those systems of Principles and correlated Facts, comprising Mathematics, Astronomy, Physics, Chemistry, Biology, Sociology, and their derivative domains, which were founded on the exact Observation of Phenomena, and set aside all other realms of the universe