SERIOUSNESS OF INSECT-BORNE DISEASES TO ARMIES 47 



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

 tions at temporary locations (Mann). 



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Kf 



;m 



.St 



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



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



at night (Mann). 



