120 



market by weight, to those who make it their business 

 to rear the silkworm in cities. But judgment is requir- 

 ed by the purchaser in the selection. 



In other places, the trees are hired by the season, the 

 price paid being from four to six francs for each tree, 

 according to its size and condition. In France, a well 

 cultivated tree will usually produce thirty pounds of 

 leaves, but in the south of France there are many trees 

 which will produce some 150 pounds, and some 300 

 pounds of leaves, and some trees produce even more. 



SECTION XL. 

 REMARKS ON THE PRICE OF LABOR. 



IT has been remarked by the Baron Charles Dupin, who 

 is deemed high authority, for sagacity and distinguished 

 research into all subjects connected with questions of com- 

 mercial and political interest, that in all the most important 

 branches of manufacture, a superiority the most decided, 

 has been attained by those people with whom labor bears 

 a higher price than with their rivals. He instances in 

 proof the cotton manufactures of England, which are 

 afforded both cheaper, and of better quality, than by 

 any other people of Europe, although the price of labor 

 is dearer in Great Britain than in any other country of 

 the Eastern World. Also, he instances the manufac- 

 ture of linens, in wjiich the Dutch and the Belgians 

 surpass and undersell the Bretons, although the price of 

 labor is higher in Holland and in Belgium than in Brit- 

 tany. Furthermore, he has shown that in the produc- 

 tion of fine woollens, France sttrpasses and undersells 

 Spain, although the price of labor is higher in France 

 than in the latter kingdom. 

 The striking superiority, in these instances, is ascribed 



