2. (a.) This implies that the object in quest exists, or is capable of being evoked into active existence, as a Force or operative Law capable of producing real effects. Otherwise, it would be no auxiliary to Man. Viewed _per se_, and apart from its being fitted to his special purpose, it must therefore be a _natural_ power or law, and answers to what Bacon calls a Form or Formal cause.[180] (It is plain that human production requires some particular utilization of a producing force, wider in itself than this or any other ancillary application of its energies. Compare Bacon's philosophic observation[181] that the operative Form "deduces the given nature from some source of being which is inherent in more natures.") 2. (b.) A number of such powers, forces, laws, forms, present themselves to the intellectual eye of an inventor or producer. Possible _fitness_, (adaptability)--must therefore next be determined. And here the power is no longer considered separately, but in relation to some Formation. In 2, therefore, we have (a) a simple fact or general law of Force;--and (b) a correlated fact, or specialized law of Production. 3. Finally, for operative activity, there must be an efficient cause putting in movement the productive law, over and above its intelligent apprehension just presupposed. This efficient Cause, as seen always in human Production, is a Will. Now each several step in this series comes before us as an act of _Mind_. But out of this number one only needs to be examined here;--because Purpose (1) has been treated of in Chapter II. Will (3) occupies the close of this Essay.