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SECTION VI.—THE LIFE HISTORY OF THE PARASITE, page 67; early
changes in deposits, ib.; method of instituting cultivations, ib.; period
at which embryos hatch out, page 67 ; measurements of ova, ib.; points
of distinction between Dochmius, and other ova found in dejecta,
page 70 ; changes in ova previous to hatching out, ib.; the newly-
born embryo, page 71; encapsuling and calcification of embryos, as
recorded by Lutz, a fallacy, page 72 ; method of examination of culti-
vations, pages 72-73 ; the process of ecdysis, page 73; changes in embryos
while still of indeterminate sex, page 74 ; meaning of term rhabditis,
page 75 ; the development of the male rhabditis, pages 75-78 ; the
development of the female rhabditis, pages 79-80 ; reproduction of the
rhabditis, pages 80-81 ; experiments with monkeys, pages 81-85 ;
the question of encystment of the parasite, pages 85-87 ; duration of
life of the parasite, pages 87-88.
SECTION VII.—EFFECT OF VARIOUS CONDITIONS ON THE LIFE OF THE
FREE STAGE, page 89; effect of food-supply, ib., ; if limited, only a single
generation is produced, ib.; if fresh supplies are furnished, a large number
of generations may succeed each other, in the free state, page 90 ; experi-
ment illustrating these points, pages 90-91; infectiveness of soil may
continue indefinitely, page 92; effect of supply of oxygen, ib. ; therhab-
clites can only live on the surface, ib.; live but do not nourish in water,
ib.; deprivation of oxygen kills, page 93; experiments illustrative of
this, ib.; influence of moisture, page 94; most favourable degree of,
ib.; can survive moderate dessication of some duration, but not chemical
drying, ib.; the dessicating influence of sun in dry weather is capable
of killing them, ib. ; the bearing of these facts on disinfection and on
the distribution of the disease, influence of heat, page 95; temperatures
exceeding 140°F. kill the rhabdites and ova : influence of chemical agents,
page 96; influence of light, ib.
SECTION VIII.—THE METHOD OF INFECTION BY THE PARASITE, page 97 ;
auto-infection by ova impossible, ib.; infection probably only by rhab-
ditis' piOgeny, ib.; drinking water an improbable vehicle of infection,
pages 97-98 ; infected earth introduced into food is probably the usual
vehicle, pages 99-102 ; frequent re-infections are probably the rule, page
102 ; clanger of infection through the agency of milk, page 103.
SECTION IX.—REMARKS ON THE PATHOLOGY, DIAGNOSIS, AND TREAT-
MENT, &c., OF ANCHYLOSTOMIASIS, page Τ 04 ; importance of early diagnosis
and treatment, ib.; lesions in the stomach, page 105 ; the importance of
dyspepsia in the production of the fatal train of symptoms, page 106;
Cobbold on predisposition in helminthiasis, page 107 ; Kynsey on the
symptoms of anchylostomiasis, ib.; the diagnosis of anchylostomiasis by
microscopic methods, pages 108-109 ; Coccidia in dejecta of kala-azar
patients, pages 109-111; method of searching for expelled parasites,
pages 111-112 ; the importance of systematic medical inspections of
coolies, pages 112-113; earth-eating, pages 113-Π5; remarks on treat-
ment, pages 115-120 ; complications of anchylostomiasis, other parasites,
page 121; Trichocephcdus dispar, ib.; Ascaris lumbricoides, page 123;
Oxyuris vermicularis, page 124 ; Amphistoma hominis, ib. ; Distoma
crassum, page 125; cestode parasites, ib.; pedeculi, page 126; intestinal
coccidia, page 127 ; malarial complication, ib.; mode of death in anchy-
lostomiasis, ib.