CONTENTS. 



Pace 



Preface vii 



Introduction. Parasites and Parasitism ix 



PART I. 

 Animal Parasites. 



I. Protozoan Parasites 2 



A. Diphtheritic Roup 2 



B. Epithelioma Contagiosum . 



C. Further Parasitic Forms 11 



II. Insect Parasites (Phthiriases) 12 



A. Fleas (Pulicidae) 13 



B. Lice (Mallophaga)* 18 



0. Other Insect Guests 34 



* In a work on New Mallophaga published this year, by V. L. 

 Kellogg, the Mallophaga are treated as a distinct order of Insects ; 

 and this order is subdivided into two sub-orders, (i.) Ischnocera and 

 (ii.) Amblycera — the characters being taken from the antennre and 

 the labial palps. 



This work is issued by the Leland Standford Junior University. 

 Paulo Alto, California. 



A 2 



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