10^ 



After a few days, the flies would emerge from iinparasitized ma- 

 terial, and these were liberated daily until emergence ceased. 

 The material was then gone over and everything discarded ex- 

 cept the sound puparia, which would be suspected of containing 

 parasites. When parasites emerged they were conducted as soon 

 as possible into G^'xl" test-tubes containing a fresh leaf holding 

 drops of honey and water. About twenty parasites can be kept 

 in good condition in a single tube and if carefully attended they 

 can be expected to live at least a month. If necessary to hold 

 longer, they can be reared in confinement wherever a good supply 

 of infested fruit can be obtained. 



At Singapore I had the misfortune to lose part of my ecjuip- 

 ment and I utilized the time necessary to have it replaced in in- 

 vestigating melon-fly conditions in Java. It is only a 36-hour 

 run from Singapore to Batavia, and another 3-hour journey on 

 the railroad to Buitenzorg. the seat of Government and location 

 of the scientific laboratories. The director of the scientific work.. 

 Dr. Konigsberger, showed sympathetic interest in my mission, 

 and kindly ofifered me a desk in the Strangers' Laboratory. I 

 spent nearly a month in Java, 10th October to 6th November, 

 and in this time reared between 4,000 and 5,000 flies. In due 

 course the material disclosed the parasite found at Singapore, 

 and I was able to take a small lot of males and females away with 

 me. My time in Java was limited, and the work done there 

 was done too hurriedly to give anything more than an impres- 

 sion of the conditions, but the impression was very favorable. 

 Cultivated fruit was scarce at that season of the year, and 

 Momordicas were used very largely in rearing flies. These 

 fruits are not cultivated in fields or gardens, but are grown by 

 the natives around their houses, and are, therefore, very much 

 scattered. The cultivated fields appeared clean, and I was told 

 that two pickings are usually secured before an infestation is 

 noticed. A large ground-beetle was very active here. 



Ofn returning to Singapore, I found a letter from Muir giving 

 encouraging information in regard to the Philippines, but I had 

 already made my plans to go to India, and was obliged to defer 

 the investigation of this new field till later. 



Leaving Singapore on the 9th of November, We arrived at 

 Negapatam on the 16th, and from there I proceeded by rail to 

 Bangalore, in IMysore State, a locality highly recommended by 

 Compere. I may say that the idea of going to Pusa had to be 

 abandoned on account of the low temperatures prevailing there 

 during the winter months. I found Bangalore suited to my pur- 

 poses, although it is not, as I had expected it to be, in a rich 

 agricultural or fruit-growing section ; it is one of the hill sta- 

 tions of India, in normal times with a garrison of more than 

 10,000 troops, and on account of its fine climate, has attracted 

 many Indian pensioners. It was natural, therefore, to find on 

 the outskirts of the city extensive gardens, and my first examina- 



