low the birds a dusting place and if t;he parasites are 

 ver^- numerous ii'sect powder or sulphur should be 

 mixed with the dust and when the fowls scratch and 

 burrow in this powdoi- it enters the spaces between the 

 feathers, i^eacheis the skin and so obstructs the breath- 

 ing opeaiings on the surface of the flea that it finds the 

 conditions very disagreeable and becomes stupefied 

 and falls off or goes away. 

 Or insect powder can be 

 blown by means of a powder 

 gun or blower between the 

 feathers of the afflicted fowl. 

 It is also necessary to so 

 treat the roosting places, 

 nests and poultry houses 

 that the fleas will be either 

 destroyed or driven away, liecause if this is not done 

 they retuin to the birds as soon as the dust is shaken 

 from their feathers. Disinfection can be accomplished 

 by spraying the interior of the building with a solu- 

 tion of carbolic acid (one part to twenty parts of 

 water). Or a kerosene emulsion, such as is used for 

 s])rayiiig fruit trees, can be employed for the same i)ur- 

 pose. 



Head of the Chicken Flea. 

 Thirty times natural size. 



•2. MCE. 



Bird lice differ considerably from the ordinary lice 

 of haired animals. They do not suck blood as those 

 do and cannot, for they are provided with a mouth 



