CONTENTS. Xlll 



discovered in the Vegetable "World Carmine Influ- 

 ence of Light in the Manufacture of Colours Rouge 

 forthe face Ink The Cynips Caprification Dioecious 

 Plants Ripening of Figs in the East Gall-nuts Cy- 

 nips gallfe tinctorice Theory of the Formation of Vege- 

 table Tumours Analysis of Gall-nuts Their Products 

 and Uses Cynips quercus folii On the Formation of 

 Grease by Animals Other Insects Producing Dyes 

 Aphis pini Money-spiders The Magenta Dye and 

 Cochineal 3764 



CHAPTER IV. 



INSECTS PKODUCINa WAX, EESIN, HONEY AND 



MANNA. 



Chinese Coccus which produces a kind of Spermaceti 

 Value of its Produce White Lac Insects producing 

 Resin Wax Insect of Sumatra Details concerning 

 the wax Coccus Bees Apis mellifica Its native 

 country Virgil Modern Authors who have Written 

 on Bees Apis ligusticaA, amalthea and its curious 

 Nests Bamburos Apis unicolor Green Honey of 

 Bourbon Rock-honey of North America Apis fasciata 

 A. indica A. Adansonii A Swarm of Bees The 

 Queen, Males and Workers Mathematics of the Bee- 

 cell Silk produced by Bees Production of Wax How 

 Honey is procured Plants favourable to Bees Dura- 

 tion of Life in Bees Enemies and Maladies Chloro- 



