G6 

 ORANGE DISEASES. 



Our Orange and Lime trees are attacked by several enemies. 

 The small Avhite specks as seen (fig. 4 1) on tlie bark of the orange 

 tree are the male scales of the Chionaspis Citri, a scale insect 

 which does considerable injury to these trees; and the large 

 white and green blotches are lichens (fig. 4 2). In fact 



FIG. 4. 

 I. Male scales '* cbionaspis citri," 2. Lichen, 

 the orange and lime trees have very many enemies, some 

 more injurious than others. The above do more material injury 

 as by being placed on the trunks and limbs of the tree they 

 render it sickly. Other pests such as the papilio anchisaides, 

 PAPiLTO ANDROGOES, do injury by eating the leaves. The former, 

 like the scale insects, can be destroyed by spraying with a weak 

 solution of kerosine, water and soap. 



H. CARACCIOLO. 



How TWO INSECTS TALKED. — A Parisian chemist has caught 

 two little insects in the act of nocturnal " spirit " rapping. 

 They were found about four inches apart on opposite sides of' 

 a piece of heavy Avrapping paper. Each tajiped loudly with 

 the head about six strokes a second, one answering as the 

 other finished. 



