Time is of the essence of this Assignment.  Title or captions of paragraphs hereof are for convenience only and neither limit nor amplify the provisions hereof.  References to a particular paragraph refer to that paragraph of this Assignment unless otherwise indicated.  If, for any circumstances whatsoever, fulfillment of any provision of this Assignment shall involve transcending the limit of validity presently prescribed by applicable law, the obligation to be fulfilled shall be reduced to the limit of such validity; and if any clause or provision herein operates or would prospectively operate to invalidate this Assignment, in whole or in part, then such clause or provision only shall be held for naught, as though not herein contained, and the remainder of this Assignment shall remain operative and in full force and effect.