[The first Cause of Depopulation, Emigrations] —— [ib.]
[The second Cause, Luxury] —— [6]
[Third Cause, Decay of Agriculture] —— [10]
[Fourth Cause, the pernicious Treatment of Diseases] —— [12]
[Means for rendering this Treatise useful] —— [15]
[Explanation of certain physical Terms, and Phrases] —— [26]