36 INSECT MANUFACTURES. 



in a room healed by a stove, and the young cater- 

 pillars are then removed on their mulberry-leaves 

 to a cooler apartment called the nursery, where 

 they are managed with great care and skill. 

 Wicker shelves are arranged in the room at con- 

 venient distances, and are lined with paper, on 

 which the worms are placed. Care is taken to 

 place together only such worms as are hatched 

 at the same time, for without this precaution the 

 treatment, with respect to food, could not be regu- 

 lated, and the moultings would not take place at 

 the same time. Great care is also taken to secure 

 the worms from rats and mice, as well as from 

 certain insect enemies. 



Silkworms are so little disposed to wander 

 away from their food that open trays are sufficient 

 to secure them : but unless great cleanliness is 

 observed in their management, and frequent change 

 of food given, a sickly smell is observed, and the 

 caterpillars languish and die in great numbers. 

 Supposing the young brood goes on well, and is 

 properly attended by the child whom we have 

 supposed to undertake the charge, there will be 



