The Vectors of Relapsing Fever 



Female Male 



529 



J 



Ovum or nit Embryo 



Fig. 203. — Pediculus capitis, or head-louse. X 10. a, Female; b, male; c, egg 

 cemented to a hair; d, nymph. (From Beattie and Dickson's "A Text-book of 

 General Pathology," by kind permission of William Heinemann, Publisher.) 



Male 



Female 



Embryo Ovum 



Kg. 204. — Pediculus vestimenti, the clothes or body louse. X 10. a, Male; 

 i, female; c, nymph; d, egg. (From Beattie and Dickson's "A Text-book of 

 General Pathology," by kind permission of William Heinemann, Publisher.) 

 34 



