Summary

1. Lice may forsake a garment on exposure to the light and heat of a summer sun.
2. Cardigan jackets after winter wear are prone to extreme "lousiness".
3. The lousiness of old campaigners (infantry) is still unreasonably high.
4. Evidence accumulates to illustrate how among old campaigners the soldiers themselves are the main centres of dissemination and how easily lice may be spread by may kinds of small accidents.
5. Troops new to the front become infected by the cumulative effect of lousy men already present among them, mingling with all troops while training, unclean billets and neglect.
6. Disinfection of material by the Thresh apparatus is certain if carried on as the makers recommend.
7. Disinfection of material in chambers by exposure to strong hot vapours from Formalin, cresol and wet chloride of Lime is not practicable and the standard methods of using Sulphur dioxide and carbon bisulphide were not improved upon or threatened.
8. Lice may be killed on blankets by using a fine spray of 10% Formalin or cresol (preferred) 2 pints to the blanket, rolling the blankets tightly and leaving for a day.
9. Hot Ironing. Labour for such at the baths may be obtained from regiments bathing.
10. Regimental Efforts. Units by means of hot-ironing and stricter medical inspection while resting will reduce lousiness materially. New troops should be able to control the pest by this means.
11. Insecticides. Preparations available, powders or ointments, have only a minor and expedient function. They may be used in the trenches. Ointment insecticides are efficiacious largely by reason of their "greasiness" and not by chemical properties.They choke mechanically the spiracles of the insects.