\ 



PARASITOLOGY. 



Ill 



the steaming with oil of eucalyptus and turpentine, 

 of each one dram in one-half gallon of water, for 

 one-half hour twice daily, will be effective treatment. 

 The can is made cone shape, so that one end of a 

 rubber hose can be attached to the top. The other 

 end of the hose is attached to a hole in a disc-shaped 

 board placed in the bottom of a grain sack ; in the 

 top of the sack is a hoop which holds the sack open 

 for the reception of the nose. 



THE LUNG WORMS. 



Strongylus Arnfieldi (Arnfield). 



Distribution. — Rare in the Unit- 

 ed States. 



Description. — It is a thread-like 

 worm, white in color; the mouth 

 is orbicular and nude ; the caudal 

 pouch of the male is short; the 

 spiculae do not project as far as the 

 posterior border of the pouch ; 

 the tail of the female ends obtuse- 

 ly ; the male is from one to one 

 and one-half inches long, the fe- 

 male from two to two and one- 

 half inches ; the female is ovipa- 

 rous. 



Ajiimals Infested. — The horse, 

 the ass and the mule. 



Parts Infested. — The bronchi and 

 lungs. 



Fig. 41— Strongylus Arnfieldi. 

 Caudal Extremity of Female. 

 a. Anus. 



