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collected, in 4.2 25% of 317 larvae. In the early October collections, only 1 A. jeyporiensis larva was obtained. On reference to Table XII, it will be seen that the A. jeyporiensis catch rose considerably in October and November, and fell sharply in December. Of the 1,415 A. jeyporiensis caught in October and November, 1,054 were obtained during the period mid-October to mid-November. It would seem that the rise in the A. jeyporiensis catch in October and November is mainly due to breeding in the rice fields from October onwards.
165. Several surveys have been done in stream A.2 between the road and the Aqueduct. Most of the boulders have been taken out of this stream in order to make terraces for cultivation. Few larvae have ever been found in A.2.
166. Stream A is a difficult stream to deal with in the rainy season. There are several large boulders in its broad bed obstructing the flow of water, and consequently in the rains, innumerable pools are formed which make oiling, and checking of the oiling difficult. An inspection was made early in the year along with the Shing Mun Engineering Staff and the question of the removal of certain boulders raised. Towards the end of the year training suitable for the dry season was commenced but the obstructing boulders still remain.
167. Searches were made along the east bank of the Shing Mun from opposite Ho Pui southwards to the dam and along the aqueduct up to the swampy ravine at the head of stream A.2. No places likely to yield A. jeyporiensis larvae in large number were found. As in 1933 very few anopheline larvae were found in the swamp at the head of A.2.
168. Catching was done in Needle Hill matsheds situated on the left bank of the Shing Mun opposite the dam. The sheds gave accommodation to coolies engaged in quarrying. At the end of the year the number of labourers housed here amounted to 150. In 269 morning catches only 398 anophelines were obtained but of the 98 A. minimus dissected 3 or 3.26% were infected. Of 80 A. jeyporiensis 1 or 1.25% was infected. No infections were found in 44 A. maculatus, 165 A. hyrcanus and 1 A. splendidus.
169. In the course of larval surveys done by the Shing Mun Staff, larvae of A. jeyporiensis were found in the grassy ditches between plots of dry cultivation. In December a survey was done by them in the pools in rice stubble along and east of the Castle Peak Road between the points where stream A meets the Road; and where the Access Road meets it. The rice fields are situated at the foot of a ridge and some of them had been drained dry. Of 362 larvae collected, 315 were ...
M 148
collected, in 4.2 25% of 317 larvae. In the early October collections, only 1 A. jeyporiensis larva was obtained. On reference to Table XII, it will be seen that the A. jeyporiensis catch rose considerably in October and November, and fell sharply in December. Of the 1,415 A. jeyporiensis caught in October and November, 1,054 were obtained during the period mid-October to mid-November. It would seem that the rise in the A. jeyporiensis catch in October and November is mainly due to breeding in the rice fields from October onwards.
165. Several surveys have been done in stream A.2 between the road and the Aqueduct. Most of the boulders have been taken out of this stream in order to make terraces for cultivation. Few larvae have ever been found in A.2.
166. Stream A is a difficult stream to deal with in the rainy season. There are several large boulders in its broad bed obstructing the flow of water, and consequently in the rains, innumerable pools are formed which make oiling, and checking of the oiling difficult. An inspection was made early in, the year along with the Shing Mun Engineering Staff and the question of the removal of certain boulders raised. Towards the end of the year training suitable for the dry season was commenced but the obstructing boulders still remain.
167. Searches were made along the east bank of the Shing Mun from opposite Ho Pui southwards to the dam and along the aqueduct up to the swampy ravine at the head of stream A.2. No places likely to yield A. jeyporiensis larvae in large number were found. As in 1933 very few anopheline larvae were found in the swamp at the head of A.2.
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168. Catching was done in Needle Hill matsheds situated on the left bank of the Shing Mun opposite the dam. The sheds gave accommodation to coolies engaged in quarrying. At the end of the year the number of labourers housed here amounted to: 150: In 269 morning catches only 398 anophelines were obtained but of the 98 A. minimus dissected 3 or 3.26% were infected. Of: 80: A. jeyporiensis 1 or 1.25% was infected. No infections were found in 44 A. maculatus, 165 A. hyrcanus and 1 A. splendidus.
169. In the course of larval surveys done by the Shing Mun Staff, larvae of A. jeyporiensis were found in the grassy ditches between: plots of dry cultivation. In December a survey was done by them in the pools in rice stubble along and east of the Castle Peak Road between the points where stream A meets the Road; and where the Access Road meets it. The rice fields, are situated at the foot of a ridge and some of them had been drained dry. Of 362 larvae collected, 315 were
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