O F S I L K. ly 



moifture, which might follow from the 

 fruit of the black mulberry, may alfo at- 

 tend the ufe of the white mulberry leaves ; 

 but fuch trees as are great fruit-bearers, 

 fliould not be chofen for feeding filkworms* 

 Laftly, if finer filk is made from the white 

 mtdberry, it is a material circumftance. 

 Yet I think it not improper to have fome of 

 the black mulberry-trees as well as white, 

 fmce it is certain that good filk can be pro^ 

 duced from them, and that one tree of 

 them is equal to two of the others for 

 quantity of leaves ; fo that, in cafe of de-* 

 ficiency, they would always be a refource ; 

 in the colder climates I kriow they thrive 

 bell:, and even in Pej-Jia they are faid to 

 be made ufe of in rearing filkworms 5 

 however, for our colonies, I would always 

 be fuppofed to intend the white mulberry^ 

 tree j and though, in the fubfequent rules 

 for raifmg them, I fliall make no diftin(5lion 

 between the black and white, fmce the 

 method of raifmg one fort may ferve for 

 the other, yet at the fame time I mud ob^ 

 ferve, that, fince many of thefe rules are 

 adapted to climates where the tree requires 

 fome care and nicety to raife it, therefore 

 the very fame care and caution will not 

 C be 



