of the possibility of experience and of the empirical cognition of objects of sense, hence not a principle of the understanding, for every experience is enclosed within its boundaries (con forming to the intuition in which it is given); nor is it a constitutive principleg of reason for extending the concept of the world of sense beyond all possible experience; rather it is a principle of the greatest possible continuation and extension of experience, in accordance with which no empirical boundary would hold as an absolute boundary; thus it is a principleh of reason which, as a rule, postulates what should be ef fectedi by us in the regress, but does not anticipate what is given in it self in the objectj prior to any regress.