Page. 



Destruction of larvae and abolition of breeding places 51 



Kerosene on breeding pools 51 



Drainage 58 



Practical use of fish 54 



Artificial agitation of the water 54 



Later use of kerosene 55 



Other larvicides ■. 57 



Permanganate of potash 57 



Proprietary ixdxtures 58 



Experiments of Celli and Casagrandi 58 



Tar and its compounds 60 



Eucalyptus trees 62 



Drainage and community work 63 



Appendix - 66 



ILLUSTRATIONS. 



Page. 



Fig. 1 . Culex pungens : Eggs and young larvft 23 



2. Culex pungens: Head and mouth parts of larva 24 



3. Culex pungens: Full-grown larva and pupa 26 



4. Culex pungens: Adults, male and female, with structural details 27 



5. Culex teeniorhynchus: Female 28 



6. Anopheles quadrimaculatus: Adult male and female 32 



7. Resting positions of Culex and Anopheles compared 33 



8. Resting positions of Anopheles on vertical and horizontal walls 34 



9. Resting positions of Anopheles and Culex, after Waterhouse 34 



10. Anopheles quadrimaculatus: Egg mass 35 



11. Anopheles quadrimaculatus: Isolated eggs from above and below 35 



12. Anopheles quadrimaculatus: Newly hatched larvae 3t) 



13. Half-grown larvae of Anopheles quadrimaculatus contrasted with same 



stage of Culex pungens 37 



14. Feeding position of larva of Anopheles quadrimaculatus contrasted 



with that of Culex pungens 38 



15. Anopheles quadrimaculatus: Full-grown larva, showing head from 



above and below - 39 



16. Anopheles quadrimaculatus: Pupa contrasted with that of Culex 



pungens -40 



17. Anopheles pmictipennis: Head of full-grown larva from above 41 



18. Anopheles punctipennis: Adult female 43 



19. Anopheles crucians: Adult female 44 



20. Psorophora ciliata: Adult female 45 



21. Megarhinus rutilus: Adult female 46 



22. Aedes sapphirinus: Adult female 47 



