SOURCES OF SUGAR. 29 



those interested in commercial transactions ■with sugar and its allied 

 products. 



The tabular statement of the tarifT on sugar, extending from 1790 

 to 1882, inclusive, compiled Avith care, has been subjected to such re- 

 vision, as, I believe, entitles it to the confidence of those who wish to 

 investigate this subject, or to predicate legislation thereon. 



The Imports and Exports are taken or compiled from the "American 

 State Papers" and the statistics of " Commerce and Navigation." 



The ^^ Difference" is obtained by subtracting the exports from the 

 imports, or the reverse; if the export item exceeds the import item, a 

 minus sign is used to designate such excess. 



''Value" signifies the difference between the value of the imports and 

 the value of the exports, and is, therefore, the co.st of what is con- 

 sumed. From 1867 to the present date, the amounts in the value col- 

 umn are quoted from the statistics of "Commerce and N^avigation." 



"Price," or "Averarie per pound," is obtained by dividing value by 

 the quantities in the column of foreign consumption. 



The annual amounts "Pair? /or e«8to»i.s" from 1867 until date, are 

 quoted or compiled from the statistics on "Commerce and Naviga- 

 tion ;" previous to that year, they are found by multiplying the quan- 

 tity consumed by the rate of duty on each kind or grade of the article 

 under consideration. For instance, refined sugar comprises different 

 grades, with a corresponding variety in the rates of duty. 



The ''Rate," or "Average rate of diitij," is the result of dividing the 

 Paid for customs by the amount consumed. 



The column of Domestic produce is estimated and collected from va- 

 rious sources, and, altliough not absolutely correct, forms the best 

 known data of the sugar produced in the United States. 



The figures in Domestic exports are quoted from the "American State 

 Papers" and statistics of " Commerce and Navigation." 



Previous to 1867, Foreign consumption is deduced from the imports 

 and exports ; after that time, the amounts are taken from the tables 

 of home consumption in the statistics of " Commerce and Navigation." 



Domestic consumption, previous to 1867, is the difference between do- 

 mestic production and exports ; subsequently, the amounts are copied 

 from the statistics of " Commerce and Navigation." 



Total consumption and Average per capita are interesting and impor- 

 tant, as showing the rate of increase in the consumption of sugar with 

 the increasing population ; also, the fluctuations from year to year, 

 caused by changes in the tariff laws, or by wars or other disturbances. 



