CHAP. VII.] 



ARTICULATA. 



307 



tually ensued ; and so tenacious are the leeches that even 

 after death they retain their hold for some hours. 1 



1 Even men, when stooping to 

 drink at a pool, are not safe from the 

 assault of the cattle leeches. They 

 cannot penetrate the human skin, 

 but the delicate membrane of the 

 mucous passages is easily ruptured 



by their serrated jaws. Instances 

 have come to my knowledge of Eu- 

 ropeans into whose nostrils they have 

 gamed admission and caused serious 

 disturbance. 



x 2 



