CONTENTS. IX 



PAGE 



— Polynema in Eggs of Dragon-fly — Sphex — Platygaster — 

 Horse-fly — Livingstone — Animals in Paraguay destroyed by 

 Hippobosci — Dipterous Parasites on Sheep and Stag — Gordius — 

 Shower of Worms — Eels in Ears of Corn 1G2 



CHAPTER IX. 



PARASITES THAT MIGRATE AND UNDERGO 

 METAMORPHOSES. 



Nostosites — Xenosites — Hosts serving as a Creche, a Vehicle, or a 

 Lying-in Hospital — Lamarck on Spontaneous Generation — Tre- 

 matodes — Monostomes — Sporocysts and Cercarise — Passage from 

 one Host to another — Distomes — Flukes — Hemistomes — 

 Amphistomes — Taeniae of the Dog and Wolf — Hydatids — Taenia 

 solium in Man — Cysticercus of Pig — Cysticercus of Rabbit and 

 Hare passing into Dog — Coenurus of Sheep — Bothriotfephalus — 

 Linguatula in Negro — Strongyli — Trichinae — Panic in Germany 

 — Vibriones in Corn — Echiuorrhynchus — Dicyema 183 



CHAPTER X. 



PARASITES DURING THEIR WHOLE LIFE. 



Strepsitera — Sty lops — Rhipiptera — Tristomidae — Epibdella — Diplo- 

 zoon, two Individuals — Polystomum of Frog — Gyrodactyles — 

 Cochineal Insect — Aphides — Phylloxera of Vine — An Acaris, 

 its Mortal Enemy — Ant-Cows — Bonnet's Theory of Germs — 

 The Reduvius personatus, a valuable enemy to the Bed-bug ... 255 



