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of the genus Hepatozoon to be described. In the same year Christophers
(1905) described another species, H. gerbilli and worked out its life-cycle
in the rat louse Haematopinus sp. He also (1905) worked out the life-
cycle of H. canis in the dog and (1907) the sexual cycle in the dog tick R.
sanguineus. Acton and Knowles (1914) published a Study of
Haemoproteus columbae. Mackie (1914) described a flagellate infection
of sandflies under the name of Herpetomonas phlebotomi and a plasmodial
parasite of the flying fox which he named plasmodium pteropi. Chatterjee
(1914) in cultures of tank water obtained a bodo-like flagellate on which
he tried the effect of various chemicals and (1915) he showed that
Trichomonas hominis var. pentatrichomonas occurred in India. Adie
(1915) described the sporogony of H. columbae in Lynchia maura, traced
the development of the protozoon to the sporozoit stage in the salivary
glands and produced infection in apparently "clean" pigeons by the bite
of the fly. Chatterjee (1917) described various flagellates as the cause of
dysentery.
3. Shortt (1917) described two haemogregarines of cold blooded
vertebrates to one of which he gave the name of Haemogregarina
nucleobisecans. In both, schizogony in the internal organs is described.
Knowles and Cole (1917) published a study of entamoebic cysts and Cragg
(1917) gave a list of the protozoal infections found in the stools of troops
from Mesopotamia, while the same author (1919) made a detailed study
of Entamoeba coli. Boulenger (1919) recorded the various protozoa
occurring in troops in Mesopotamia and Hughes (1919) identified the
parasite responsible for three cases of sleeping sickness among troops in
East Africa as Trypanosoma rhodesiense. Patton et al (1921) in eight
papers recorded morphological and other studies on flagellates of the genera
Herpetomonas, Crithidia and Rhynchoidomonas. Shortt (1922) reviewed
the position of the genus Haemocystidium which he sank as synonymous
with Haemoproteus and gave a description of two new species, H.
phyllodactyli and H. grahami. He also (1922) described two new
haemogregarines, H. procteri and H. percomsi, from Persian lizards.
Chatterjee (1922) gave an account of an 8-flagellate organism from the
stools of a case of acute dysentery. Shortt (1923) recorded observations
on the life-cycle of H. ctenocephali and its reactions to different environ-
ments and (1923) described a new method of obtaining a ripened
haematoxylin stain for protozoological work, ready for immediate use.
Knowles, Napier and Gupta (1923) studied the pH of stools in protozoal
infections and found that they were on the acid side in E. histolytica
infections and on the alkaline side in flagellate infections. Shortt
(1923) published an important paper on the pathogenicity of insect
flagellates to vertebrates with special reference to H. ctenocephali which
completely traversed the work of Fantham and Porter, Franchini and
Laveran on this subject. Knowles and Gupta (1924) described a species.
of Bodo from human saliva. Shortt and Swaminath (1924) gave an
account of Nosema adiei in the bed bug, a parasite once mistaken for
forms of Leishmania donovani in the salivery glands of this insect. Gupta
(1926) described Pentatrichomonas ardin delteili as the common species,
occurring in Calcutta and suggests that it has a tropical distribution