SERIOUSNESS OF INSECT-BORNE DISEASES TO ARMIES 47 



--~:^^^'i^- -^^^ ^^^^ 



Fig. 4. — Straddle trench latrines, 1 foot wide, 2 feet deep, 3 feet long, for field opera- 

 tions at temporary locations (Mann). 



Fio. 5. — Covered pit latrine level with ground, a semi-permanent type (Mann). 



Fio. 6. — Garbage can with top converted into portable urinal for use in company street 



at night (Mann). 



