NATURALISTS CABINET. 



Bug-state Deformity of the louse. 



but they are, notwithstanding, very lively and 

 active. When alarmed they suddenly roll them- 

 selves up into the shape of a little hall. They 

 may be kept in a little box, and brought up with 

 dead flies, which they eat with greediness. In, 

 eleven days from their being hatched, they leave 

 off eating, and lie as though they were dying; 

 but, if viewed in this state with a microscope, 

 they will be found weaving a silken covering 

 around them, in which they are to change into 

 their chrysalis form. They continue nine days 

 in this shape, at first white, and afterwards by 

 degrees darkening their colour as they acquire 

 firmness of strength. As soon as they issue 

 from their bug they become perfect fleas, and 

 and are able to leap away. 



Fleas abound in warm climates, particularly in 

 the southern parts of France and Italy, and they 

 are not only troublesome to mankind, but like- 

 wise to domestic animals, such as dogs, cats, 

 poultry, &c. , 



THE LOUSE. 



THE external deformity of this insect, which 

 is one of misfortune's train, it examined by a mi- 

 croscope, as in the plate of insects, fig. 2. strikes 

 us with disgust ; the shape of the fore-part of 

 the head appears to be somewhat oblong; that 

 of the hind-part somewhat round; the skin is 

 hard, and being stretched, transparent, with here 



