NOX-PSOMC ACARIASES. 49 



yield to treatment. The writer has found much 

 success attended by the use of oil of cloves rubbed 

 well into the invaded area. Creosote and vaseline as 

 given for l scaly leg ' is also a useful remedy, and is 

 better for use than the benzine and sweet oil that 

 has also been tried ; this latter causes too much 

 irritation to the skin. 



B. NoN-PsORIC ACARIASES. 



The majority of the non-psoric Acari found on the 

 Fowl are comparatively harmless. One species only 

 is really a serious nuisance to the poultry-keeper, 

 namely the Dermanyssus of the Fowl, or the Hen- 

 Mite. There are, as we shall see, others that are of 

 interest, such as the Harvest Bug, which attacks our 

 poultry as well as ourselves. Some Sarcoptes live 

 between the barbules of the feathers, but are quite 

 harmless ; another group live in the air-passages and 

 even hollow bones of birds (Cytodites), and have been 

 known in several cases to cause enteritis and peritonitis 

 when present in large numbers, and a few others 

 living in connective tissue, of less importance, will be 

 briefly recorded. 



The Hex-Mite or Dermanyssus. 



Under the name of Dermanyssus gallince, Redi has 

 described a small mite that is most obnoxious to 

 poultry, a small Gamasid mite that may be found 



E 



