VUl CONTENTS. 



Page 



Fly poisons, 30 



Bees gather honey from poisonous flowers, 31 



History of poisonous honey, 32 



Poisonous British honey, 36 



Illustration from oxalic acid, 36 



Moisture in the liuman organs of taste, 37 



Curious procedure in the fly, ib. 



Salivary vessels in insects, 38 



Effect of drink on the saliva, " 39 



Drinking of ants, 40 



Drinking of butterflies, 41 



The tongue in insects, 42 



The tridenl-formed tongue of Leistus, 43 



CHAPTER HI.— Smell in Insects. 



Experiments on the smell of insects, 44 



M. le Cat's opinion about odours, 45 



Illustration from the burying beetle, 46' 



Experiments of Hunter and Huber, 47 



Whether bees perforate flowers, 48 



Suckers of some insects adapted to flowers, SO 



Illustrations from fishes and birds, 51 



Illustrations from the camel and the elephant, 52 



Oft:ensive odours of insects, 63 



Discharges of the bombardier beetle, 54 



Questioned by Millard : proved by Stephens, 65 



Odour of ants, 56 



Observation of Dr Franklin, 57 



His inference disproved by experiment, 68 



Illustrations from negroes and hounds, 59 



Experiment on the bed-bug, 60 



Organ of smell, ib. 



Opinion of Baster, Cuvier, and Lehmann, 61 



Opinions of De Blainville and Latreille, 62 



Experimenis of Huber, 64 



Opinions of Camparetti, Christ, and Lehmann, 66 



Interesting experiments of Huber, 68 



Experiments of Dr Rousseau, 69 



Other experiments of Huber, 70 



CHAPTER IV. — Hearing of Insects. 



Healing of insects denied by Linnfeus and Bonnet, 73 



Bonnet's inferences objected to, 75 



Experiment by J. R., ib. 



Experiments of Brunelli, 77 



Drum of the field-cricket, 78 



Sounding instrument of grasshoppers, 79 



