1 88 Mr. T)dahlgarrc on Silk PFormu ' 



one ihelf Is too much crowded you may take out as many 

 worms as you think proper at the moment of a new moal, 

 when they get on frefh leaves. Thefe infeds cannot bear to 

 be touched, and It Is common for them to die pf the bruifes 

 received by the rude handhng of perfons unaccuflomed to 

 them. 



(20th Que.) Refpefting the food of filk worms, is there a 

 great difference betwixt the leaves of wild mulberries of this 

 country, the red Englifli mulberry, and thofe Italian trees 

 which are called white mulberries ? 



(An 5.) We make no doubt that filk worms could eat leaves 

 of wild mulberries, and thofe called red Englifli mulberries ; 

 but experience teaches us, that the moll proper feod is the 

 leaf of the white mulberry tree. Yet there is a difference 

 betwixt leaves of the ungrafted white mulberry and thofe 

 of the grafted one ; betwix;t leaves of a young tree and thofe 

 of an old one : but for fear of being prolix in giving a full 

 account of that difference, we jQiali only obferve, that leaves of 

 ungrafted and above all of young trees, are better adapted to 

 the lirfl age of filk worms, as far as their third moulting ; after 

 which, as they grow ftronger, leaves of grafted or of old trees, 

 being more fubftantial, will agree better with them for the 

 remainder of their fliort hfe. 



They who may not have it in their power to chufe the food 

 of their worms according to the above inftructlon, fliouI4 



