140 THE INSECT WORLD. 



lac in sticks, such as it is found concreted at the extremity of the 

 branches whence it exudes it is an irregular brownish crust ; 

 secondly, the sorted lac, picked off the branches and pounded ; 

 thirdly, the lac in scales melted down and run into thin plates, 

 which vary in quality according to the proportion of colouring 

 matter they contain ; fourthly, the lac in threads, which resembles 

 reddish threads, and is prepared thus in India. 



One more word about the cochineal. The Coccus manniparus, 

 which lives on the shrubs on Mount Sinai, causes to exude from 

 the branches it has pierced a sort of manna. The Coccus sinensis 

 produces a kind of wax which is employed in China in the manu- 

 facture of candles. 



