6 
Objective and subjective symptoms; analyas of symptoms — Continued. Page. 
Clinical diagnosis of hookworm disease 80 
Blotting paper test with feces 81 
Microscopic examination of feces 85 
Gross examination of feces 86 
Treatment of hookworm disease 86 
Anthelminthic treatment 86 
Thymol 86 
Male fern 89 
Calomel 89 
General treatment 89 
Prognosis 89 
Lethality of hookworm disease . . .■ 90 
Post-mortem appearances - 91 
Prevention of hookworm disease 93 
Adult worms in the intestine; treatment 93 
Eggs in the feces; control and destruction 93 
The infecting (encysted) stage of the larva 94 
Disinfecting premises 94 
Drinking water i . 95 
Clean hands 95 
Wearing shoes 95 
Common interpretation of hookworm disease 96 
Economic importance of hookworm disease 96 
Geographic distribution and abstracts of cases found in the United States 98 
Bibliography Ill 
Index to zoological names 117 
Index to authorities cited 119 i 
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