PLATE XL 

 THE SKIN, AND SOME OF THE PARASITES 



i. Tick, infests Dogs and 

 Sheep, enlarged. 



3. Sheep Louse, 

 enlarged. 



2. Tick, or Ked of Sheep, en- 

 larged. 



5. Cow Louse, 

 enlarged. 



4. Pig Louse, enlarged. 



6. Horse Louse, 

 enlarged. 



7. Ox Warble 

 Fly. 



8. Ox Warble 

 Maggot. 



lfc*j^^l lti') |fffr t****" 1 ^ » 



9 Ox Warble 

 Chrysalis. 



10. Section of Skin : (a) Duct of Sweat 

 Gland; (b) Sweat Gland ; (c,c) Haii 

 Follicles ; (d) Hair Bulb ; (e) Se- 

 baceous or Oil Gland. 



