5:3120621 CONTENTS OF THE SECOND VOLUME. NTRODUCTION AND PLAN OF THE WORK INTRODUCTION BOOKI. Page I OF THE CAUSES OF IMPROVEMENT IN THE PRO- DUCTIVE POWERS OF LABOUR, AND OF THE ORDER ACCORDING TO WHICH ITS PRODUCE IS PART II. Of the Produce of Land which fometimes does, and fometimes does not, afford Rent PART III. Of the Variations in the Proportion be- tween the respective Values of that Sort of Produce which always affords Rent, and of that which fome- times does and fometimes does not afford Rent |