THE SILK WORM. 41 



tion swollen bodies of an opaque form and green 

 color tender skins, which break at the least touch 

 and covered with a viscious oily humor. As this dis- 

 ease is occasioned by feeding, its preventive and rem- 

 edy is to be found in a contrary mode of treatment. 



The Lusette. This disease sometimes attacks the 

 Silk Worm in its fifth age. It is supposed to be oc- 

 casioned by being stinted in its food, as the stomach 

 on dissection is found filled with a glairy transparent 

 fluid, without any remains of food. The symptoms 

 are a shining appearance of body and an enlargement 

 of the head. This disease is easily prevented by ta- 

 king care that they have a full supply of food ; and 

 the only remedy for it is separation from the other 

 Worms, and a greater supply of food. Care must be 

 taken that the food be not given in too large quantities, 

 as a disease, directly the reverse, may be the con- 

 sequence, which will be equally fatal. 



The Yellows. This disease is imputed to exposure 

 to sudden and great heat. When it attacks the Worm 

 it is generally toward the end of the fifth age, when 

 it is filled with the silky fluid and is about to commence 

 spinning. The symptoms are yellowness and swell- 

 ing of the body an enlargement of the rings and an 

 appearance of having the feet drawn up. They also 

 cease to eat and wander about, leaving stains of $ 

 yellow fluid on whatever it touches, which exudes 

 from the body. The Worms soon become soft an4 

 burst, throwing out an acrid humor, which is sure to 

 kill every one which comes in contact with it. ThU 

 is considered the most fatal disease to which thq 

 Worm is liable, and, on account of its contagion, if 

 the most to be dreaded. 



When it makes its appearance in the cocoonery, i( 

 *4 



