viii PREFACE. 



Poultry-keepers who have sent me diseased birds to 

 investigate and experiment with. For these and all 

 other Poultry-breeders and Fanciers this book is 

 written, with the hope that the too persistent 

 loss from parasitic infestation may be considerably 

 lessened. 



Wye Court, Wye, Kent. 

 October 1896. 



