The spleen percentage of Lighthouse Kuppam is as follows :—
Adults
..
. .
..
..
36
18
50 approximately.
Children ..
..
..
..
20
17
85
,,
Total . .
56
36
65.5
,,
Guna Kuppam
—
Adults
. .
..
. 11
..
31
7
22.5 approximately.
Children ..
. .
..
..
28
6
21.7
,,
Total ..
59
13
22
,,
Vairam Kuppam
—
Adults
..
. .
. .
. .
17
12
70.5 approximately.
Children ..
. .
..
..
28
6
21.7
„
Total ..
59
13
22
,,
Result of blood examination. —Blood films of unselected children of three villages the least,
the worst, and the medium infected were examined at the King Institute in order to find
out the nature of the parasites and the endemic index. The only form of parasite found during
the examination of 44 blood. films was the malignant tertian parasite both schizont forms and
sporonts being seen.
Result of blood films.
Place.
Number of films
examined
.
Number of film
containing
parasites.
Malarial index.
Remarks.
Pulicat (least infected) ..
24
2
8.33
Case 1 sporonts (scanty) case,.
2 schizonts (scanty).
Lighthouse Kuppam
(medium infected).
10
5
50
Case 1 sporonts (in fair
numbers), case 2 sporonts
(scanty), case 3 schizonts
(in fair numbers), cases 4
and 5 schizonts (scanty).
Yedamany (worst infected).
18
5
50
Case 1 adult parasites (in
fair numbers), case 2
schizonts (in fair num-
bers), case 3 schizonts
(scanty).
Breeding places of Mosquitoes. —In Pulicat on making a search for stagnant ponds of water
we found seven existing in and around the town within a distance of half a mile. Of these
one, " Dubash tope pool ", situated in a garden belonging to Dharmaraja Koil in the middle of
the town contained many Anopheles larvæ. A mosquito developed from one of these larvæ
appeared to be Anopheles jeyporiensis. No larvæ could be discovered in the other pools. The
Buckingham Canal around the town to a distance of 2½ miles (about) was also searched for
larvæ with negative results. A few mosquitoes were caught from some unoccupied stalls in
the market and on examination at the King Institute there are found to be Anopheles Rossi.
In Yedamany there are about four pools. Of these one opposite the Chembada Pillayar
Koil and another opposite to Yelamethan Koil were found to contain large numbers of Anopheles
larvæ. In one pool called Thirukolam, the water of which is much used, skeletal remains of
mosquito larvæ were found, but no larva could be detected.
No pools could. be found in and around Kotukuppam.
The other three Kuppams on the other side of the canal are surrounded by dense casuarina
plantations. These at the time of our inspection contained nearly grown up trees. Con-
sequently the existing pools were few in number and unused. Nine of them contain water.
Of these six contained abundant Anopheles larvæ and one contained Culex larvæ. The
Buckingham Canal on this side was also examined for a distance of about 2½ miles with negative
results.
COROMANDEL.
General condition.—This place consists of several villages distributed for a distance of
about 8 miles and situated on a strip of sandy tract between the Buckingham Canal and the
sea to the north of Pulicat bar. Some of the villages are situated on the canal and others
more interior. As we had but a short time at our disposal, we could examine only three of
these villages, one on the canal and two in the interior. Dense casuarina plantations and
mango topes separate one village from the another. The inhabitants are mostly fishermen. A