Part Ⅰ． General Introduction 1
1 Historical Review 3
2 The Nature of Parasitism 12
3 The Position of the Parasitic Helminths in the Animal Kingdom 16
4 The Development and Life Cycle of Parasitic Helminths 21
5 The Physiology of Parasitic Helminths 35
6 The Ecology of Parasitic Helminths 46
7 The Transmission and Dissemination of Parasitic Helminths 53
8 Protection,Resistance and Immunity in Helminthic Infections 58
9 Pathogenesis of Helminthic Infections 67
10 Geographical Distribution of Helminthic Infections 77
11 Evolution of the Parasitic Helminths 92
Part Ⅱ． Systematic Account of the Helminths Parasitic in Man 99
SECTION A． INTESTINAL NEMATODES 101
12 The Strongyloididae 114
13 The Oxyuridae 121
14 The Ascaridae 128
15 The Ancylostomidae 137
16 The Trichostrongylidae 150
17 The Trichuridae 156
18 Accidental and Spurious Nematode Parasites of the Alimentary Tract 161
SECTION B． TISSUE NEMATODES 169
19 The Dracunculidae 170
20 The Filariidae 175
21 The Trichinellidae 203
22 The Dioctophymidae 210
23 The Nematoda as Accidental Tissue Parasites 213
SECTION C． TREMATODES 219
24 Trematode Parasites of the Alimentary Tract 227
25 Trematode Parasites of the Liver 244
26 Trematode Parasites of the Lungs 258
27 Trematode Parasites of the Circulatory System 264
28 Trematode Parasites of the Skin 293
SECTION D． CESTODES 300
29 Adult Cestode Parasites of the Alimentary Tract 309
30 Larval Cestode Parasites of the Tissues 330
SECTION E． ACANTHOCEPHALA 344
31 The Archi-acanthocephala 349
SECTION F． HIRUDINEA 354
32 Leeches of Importance in Human Medicine 358
SECTION G． PENTASTOMIDA 362
33 Tongue-worms of Importance in Human Medicine 364
Part Ⅲ． Clinical and Public Health Aspects of Helminthic Infections 369
34 Diagnosis 371
35 Intermediate Hosts 393
36 Treatment of Helminthic Infections 404
37 Prevention 418
Appendices 422
A．Bibliography 422
B．Zoological Nomenclature 426
C．Helminthic Parasites of Common Laboratory Animals 430
D．Nematomorpha and Mermithoidea 445
E．Recent Advances 450