CONTENTS— am<i. 



PAGE 



Japan : The Relation of Birds to Tsutsugamushi Disease . . . . 158 



Mesopotamia : Some Arthropods of Medical and Veterinary Importance 145 



Mesopotamia : Measures against Malaria and Mosquitos. . . . 159, 160 



Morocco : The Synonymy of Diachlovus maroccanus 



Morocco : Spirochaetosis of Poultry 



Morocco : A Note on the Anatomy of Ornithodorus marocanus 



Poland : The Campaign against Typhus 



PoRTO Rico : Measures against Ticks on Domestic Animals 



Serbia : The Campaign against Typhus 



U.S.A. : The Breeding of Anophelines in Sea-water 



U.S.A. : Cuterebra Larvae from Cats and other Hosts 



U.S.A. : Traps for Screw-worm Flies and House-flies 



West Indies : Notes on Ticks and Mosquitos in the (U.S.) Virgin 



Islands in 1920 



The Causative Agent of Typhus 



Calculations relating to the Epidemiology and Control of Malaria 



Notes on the Synonymy of Palaearctic Mosquitos . . 



The Transmission of Leptomonas pyrrhocoris to various Insects 



Notes on Ochrops fulvus . . 



Thfe External Anatomy of the Sarcoptes of the Horse 



On the Sarcoptes of Man 



Notes on Rickettsia 



Dipterous Larvae feeding upon Molluscs 



On the Nephrocytes of Pediculus humanus . . 



Methods of Access of Parasites to their Hosts 



The Causes of the Change in Feeding Habits of Anopheles mactdipennis 



The Resistance of the Larva of Galleria mellonella to various Microbes 



An early Portuguese Contribution to Tropical Medicine 



Studies on Insect Flagellates . . 



143 

 150 

 150 

 137 

 140 

 137 

 138 

 157 

 158 



150 

 137 

 143 

 144 

 144 

 145 

 148 

 148 

 148 

 149 

 149 

 150 

 153 

 154 

 155 

 159 



