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ture of the materials from which the corn* 

 modities are produced. 



But the worfl confequence of thefe is, that 

 they affemble the human fpecies together in 

 too great numbers, fo that vice of all kinds 

 obtains a much more firm footing among 

 them than it can do when they are difperfed. 

 Hence all great cities are exceedingly unfa- 

 vourable to population. The unwholfome- 

 nefs of the air produces difeafes ; the inhabi- 

 tants enervate themfelves by intemperance 

 and debauchery ; and the multitudes of pro- 

 ftitutes with which they abound, not only 

 deprive the public of the fervice which might 

 be expedled from them, but likewife of their 

 pofterity ; and their example communicates 

 itfelf to the country. 



On this difagreeable fubjedl, however, we 

 cannot enter into particulars at prefent. E- 

 very reader muft aflent to the truth of what 

 we have advanced, and may make the calcu- 

 lation in what manner he thinks proper. 



To evince the truth of the general point 

 for which we have contended in this fedlion, 

 by further arguments, is unneceflary. To 

 confirm our reafoning, we fliall, however, 

 here add a few extracts from an ingenious 



writer. 



