PLATES. 



Page. 

 I. to III. Larva, pupa, imago and eggs of Maltese Phlebotomus ... to face 78 



IV. and V. African Anoplura and Mallophaga , 152 



VI. Colour Conventions for Insects and Disease „ 300 



VII. Topographical and Hydrographical Systems of Northern 



Nigeria ... ... ... ... .•• ••• ••• ••• u •'So 



VIII. to XV. Views of Northern Nigeria ,. 356 



XVI. Sketch Map of the River Garara, N. Nigeria „ 356 



XVII. to XXI. Breeding Haunts of GZossiMa mo!-sJtoKS „ 362 



MAPS. 



Page. 

 Map showiug distribution of Tsetse-flies in Mozambique ... ... ... to/ace 42 



Sketch-map of Rovuma River and ila affluents in Portuguese East Africa ... „ 46 

 Map showing distribution of Glossina and Sleeping-Sickness in the Gambia... „ 240 

 Map showing distribution of Glossina and Sleeping- Sickness in Northern 



Nigeria ... ... ... ... ... ... ... ... „ 356 



